J
Jon Elson
Guest
Ewald BĂśhm wrote:
Jon
Jon
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On Sat, 19 Sep 2015 20:26:34 -0500, "." <.@dot.com> wrote:
many instances of people - hobbyists and mechanics alike, screwing
with emmission controls in an attempt to defeat them and get better
mileage and power, and getting (usually) neither.
Nowhere did I even suggest any of that had any positive effect on
emmission reductions. What "laighable ignorance" are you talking
about???
Of course it was " unleaded fuel, catalytic converters, multiport fuel
injection and overall drive train computer management (MAF, MAP, IAT
.... sensors, among others) of HUNDREDS of millions of cars replacing
the archaic Kettering ignition, centrifugal spark advance, coil
choke-manifold vacuum-non linear venturi based carbureted engines"
that made the difference. Where did I ever suggest otherwize??
Or are you saying the emission control inspections were not
instrumental in reducing emmissions? They WERE for a short period of
time, partly by catching the vehicles that were "screwed with" by
hobbyists and "hack mechanics" - but they have become virtually
redundant today because the sophisticated engine management systems
can pretty well tell you if the vehicle is running within design specs
with a cheap OBD2 code reader - or even your cell phone with the
proper software and OBD2 code reader adapter.
No idea who or what you are since you hide your identity.
I was a carreer proffessional mechanic for years, as well as an
automotive technology instructor at both secondary and post-secondary
(trade) level.
Exactly what are you trying to say??? My reply was to say there wereOn 9/19/2015 7:38 PM, clare@snyder.on.ca wrote:
On Sat, 19 Sep 2015 16:28:20 -0500, "." <.@dot.com> wrote:
Fuel additives and larger injectors can defeat the effectiveness
of emission controls, not that they'll necessarily increase power.
Bigger injectors will just be dialed back by the computer as the O2
sensors report a richer than optimum mixture. Too big and the engine
will go into "limp mode" because the engine remains too rich even with
the calibration at lean limit. Power will suffer.
You questioned how one could simply defeat emission controls.
You were provided with effective examples.
Pull off any number (EGR, PCV, Sensor ...) of wires, hoses,
or lines; one could also easily have multiple devices either
fail or disabled (that don't prevent the engines from running)
and significantly decrease the efficiency, and increase the
pollution output, of the engine.
Yes, but it will turn on the CEL and in many cases prevent the engine
from starting, even if it will run after starting. ANd it will run
like crap when it runs. NO incentive to do it.
Again, you questioned how one could simply defeat emission
controls. You were provided with effective examples.
so that what left the
manufacturer and what was on the road were not necessarilly the same.
And those that in any manner overrode emission controls were
an insignificant percentage of the motoring public.
You would be surprised how many Olds 350 rockets back in the mid
seventies had the timing significantly altered to eliminate
overheating when pulling a trailer, or how many "super six" mopars had
the carburetion and timing adjusted off-spec to get rid of
"driveability problems" - and how many "lean burn" mopars were
"converted" to non-lean-burn without changing the camshaft (which was
required if you were going to be anywhere CLOSE to passing emissions)
and how many AIR systems were removed from GM engines - and how many
EGR systems were disconnected ---- just for starters. (under the
mistaken idea that they could get better mileage by simply removing
them)
I'm only surprised at the length of your run-on sentence.
I worked tune-up and electrical in '74-'76 at a Mopar dealer.
Remember the red, sometimes off white, idle mixture limiting,
plastic stops that covered the screw heads on Carter's (which
also had an issue with warping, requiring a retro-fit brace)?
Periodic rough idle complaints on new cars were sometimes
addressed by first subjecting such engines to a full Sun Scope
(on a rail) diagnostic. Were no issues found, I would remove
them, as emissions testing was neither available nor required.
Never once had a comeback or complaint.
Used to remove the limit caps, adjust to spec (or modified spec) and
then replace the caps, as required by law. We did the adjustment using
the exhaust gas analyzer that was part of the Sun, Allen, Marquette,
or Rotunda diagnostic scope I was using at the time. Quite a few were
off spec from the factory.
"Periodic rough idle complaints on new cars ..." I knew I heard
that somewhere. After verifying everything else was within
spec, and given that emission testing was not mandatory, the
scope, a vacuum gauge, and a tach was all that was really
necessary for an experienced mechanic to adjust the idle
mixture.
AMC,Chrysler, Mazda and Toyota
dealershipsduring that time period, as well as independent repair
shops
The numbers WERE significant.\
No they were not. "Cleaner air" evolved from unleaded fuel,
catalytic converters, fuel injection, and overall drive train
computer management of hundreds of millions, not the
hobbyists' thousands, of vehicles on US roads.
It wasn't hobbyists - it was "hack mechanics" who didn't know
anything about emmission controls and defeated them in an attempt to
"solve" problems. - some real and some immagined.
Laughable ignorance. No, what led to cleaner air was unleaded
fuel, catalytic converters, multiport fuel injection and overall
drive train computer management (MAF, MAP, IAT ... sensors,
among others) of HUNDREDS of millions of cars replacing
the archaic Kettering ignition, centrifugal spark advance,
coil choke-manifold vacuum-non linear venturi based
carbureted engines. Sad that you don't seem to know and
understand something that fundamental.
many instances of people - hobbyists and mechanics alike, screwing
with emmission controls in an attempt to defeat them and get better
mileage and power, and getting (usually) neither.
Nowhere did I even suggest any of that had any positive effect on
emmission reductions. What "laighable ignorance" are you talking
about???
Of course it was " unleaded fuel, catalytic converters, multiport fuel
injection and overall drive train computer management (MAF, MAP, IAT
.... sensors, among others) of HUNDREDS of millions of cars replacing
the archaic Kettering ignition, centrifugal spark advance, coil
choke-manifold vacuum-non linear venturi based carbureted engines"
that made the difference. Where did I ever suggest otherwize??
Or are you saying the emission control inspections were not
instrumental in reducing emmissions? They WERE for a short period of
time, partly by catching the vehicles that were "screwed with" by
hobbyists and "hack mechanics" - but they have become virtually
redundant today because the sophisticated engine management systems
can pretty well tell you if the vehicle is running within design specs
with a cheap OBD2 code reader - or even your cell phone with the
proper software and OBD2 code reader adapter.
No idea who or what you are since you hide your identity.
I was a carreer proffessional mechanic for years, as well as an
automotive technology instructor at both secondary and post-secondary
(trade) level.
T
Tom Miller
Guest
"Ashton Crusher" <demi@moore.net> wrote in message
news:qe3svadm4326lku4368295h993t677jtup@4ax.com...
And make you pay for the service.
news:qe3svadm4326lku4368295h993t677jtup@4ax.com...
On Sat, 19 Sep 2015 14:35:12 -0400, clare@snyder.on.ca wrote:
On Sat, 19 Sep 2015 12:57:04 -0500, "." <.@dot.com> wrote:
On 9/19/2015 12:46 PM, clare@snyder.on.ca wrote:
On Sat, 19 Sep 2015 09:36:27 -0500, "." <.@dot.com> wrote:
Passenger car testing of any type has ALWAYS been a scam
and is enacted for generating revenue. Nothing more, nothing
less. "Unsafe" cars have NEVER been a significant proximate
cause of accidents nor does smog testing of these vehicles
lead to measurably cleaner air. These two concerns are best
addressed at time of manufacture.
I will respectfully dissagree - with qualifications.
In the early years of safety checking, at least in Ontario, the
initial passs rate was quite low - and the requirement that a cat pass
a safety check when changing ownership took a LOT of dangerous crap
off the road.
If only there were any documentation to support that claim.
Well, as a mechanic back then, I can assure you I failed a LOT of
dangerous cars, repaired many of them, and scrapped almost as many.
Yet somehow all those dangerous cars had been driving around just fine
for the weeks and months before you and the state forced them off the
road.
Here's a typical article. Note that there is not a shred of EVIDENCE
presented that all these safety inspections do anything to improve
safety. Just the usual lip flapping by the people who rake in the
money.
http://www.foxnews.com/politics/2015/02/21/state-lawmakers-weigh-abolishing-unnecessary-car-inspections/
But if you like these safety inspections for cars, how about we
institute mandatory gvt safety inspections of everyone's home. After
all, many people get hurt or killed in their homes every year.
Shouldn't we be mandating that you be forced to allow a gvt approved
inspector to come into your home once a year, paw thru all your stuff
and demand you throw out anything they think is dangerous, fix
anything they think is "substandard and potentially dangerous" and
otherwise conform to the gvt's standard of how a home should be?
And make you pay for the service.
A
Ashton Crusher
Guest
On Sat, 19 Sep 2015 13:46:02 -0400, clare@snyder.on.ca wrote:
Safety checks on light cars and trucks are nothing but revenue
generators for the state and repair shops. The number of accidents
prevented by them is essentially zero. Emissions testing of relatively
new cars is also almost pointless but as cars age there are
undoubtedly many people who would just let the CEL blink and the car
pollute forever as long as it kept running. AZ has allowed cars to
skip the test for the first 5 or so years and then tests every other
year. Seems like a reasonable approach. Thank god we don't have
those stupid safety inspections so beloved of the anal retentive nanny
states back east.
On Sat, 19 Sep 2015 09:36:27 -0500, "." <.@dot.com> wrote:
On 9/19/2015 8:40 AM, Dean Hoffman wrote:
On Sat, 19 Sep 2015 00:12:53 -0500, mike <ham789@netzero.net> wrote:
If I were the owner of the affected cars, I would NOT bring them in for
the recall, since it's not a safety issue.
They will definitely lose performance after the "fix" (while they will
also do worse on emissions testing results).
It's a lose:lose situation for the car owner to get the car "fixed", I
think, because of those two results.
Do you agree?
Is there anything "good" that will happen if the owners "fix" their
cars?
Will you have any choice?
If the test procedure for those cars is changed to test the "real"
emissions, they will FAIL.
If you care about air quality, you have to do that.
Here in Oregon, you don't get your license plates renewed if you fail.
Some cut.
Some states, like Nebraska, do no testing. We had some testing
for horns, lights, etc. back in the 70s, but dropped it. I think
the testers hollered too loud about the low testing fee allowed.
I wonder how many of the non-compliant vehicles will end up in
states with no testing.
Passenger car testing of any type has ALWAYS been a scam
and is enacted for generating revenue. Nothing more, nothing
less. "Unsafe" cars have NEVER been a significant proximate
cause of accidents nor does smog testing of these vehicles
lead to measurably cleaner air. These two concerns are best
addressed at time of manufacture.
I will respectfully dissagree - with qualifications.
In the early years of safety checking, at least in Ontario, the
initial passs rate was quite low - and the requirement that a cat pass
a safety check when changing ownership took a LOT of dangerous crap
off the road. Annual safety checks in Ontario only affect commercial
vehicles - and again there is a pretty high failure rate - and since
selective enforcement has been in place the number of wheels coming
off commercial vehicles and killing drivers of other vehicles has
dropped SIGNIFICANTLY. Enforcement is the key.
As for emission testing - in the early years it had merit. There were
a LOT of "gross poluters" on our roads - and it was very simple to
defeat emission controls and change the calibration of an rngine (by
adjusting timing, rejetting carbs etc) so that what left the
manufacturer and what was on the road were not necessarilly the same.
With today's computer controlled vehicles, unleaded gas, etc, the VAST
majority of vehicles pass, even when 20 years old - if reasonably
maintained, and the OBD2 only testing is a total farce and nothing but
a money-grab -
Safety shecks for vehicle transfer and annually for commercial
vehicles is both a consumer protection AND safety issue - and worth
continuing. (along with "selective enforcement" on the roads - see a
"questionable" vehicle - pull it over and inspect it for basic safety
standards, and possible send for "secondary inspecion" by a registered
safety inspection station. Bring it up to standard or take it off the
road.
Safety checks on light cars and trucks are nothing but revenue
generators for the state and repair shops. The number of accidents
prevented by them is essentially zero. Emissions testing of relatively
new cars is also almost pointless but as cars age there are
undoubtedly many people who would just let the CEL blink and the car
pollute forever as long as it kept running. AZ has allowed cars to
skip the test for the first 5 or so years and then tests every other
year. Seems like a reasonable approach. Thank god we don't have
those stupid safety inspections so beloved of the anal retentive nanny
states back east.
S
Steve W.
Guest
Bob F wrote:
I doubt they will be able to sue. The "normal" EPA test numbers for
these vehicles have alwas been "low" compared to the ones outside the
lab. I hear folks all the time bragging how their VW gets 45 mpg but the
sticker says it should be getting 38 mpg. VW can re-flash the ECM and
simply say the the TEST (remember the tests would have been with the
emissions systems working)mpg is the correct number and their 45 mpg was
a fluke.
--
Steve W.
Steve W. wrote:
. wrote:
On 9/19/2015 11:12 AM, Steve W. wrote:
Sure will. You have to enter the VIN into the system to start the
inspection. IF the EPA requires a recall to reflash the ECM to
remove that software and "correct" the problem, that would have to
be done at a dealer. They will track completed vehicles by VIN. The
state can just flag ALL those vehicles. You pull in, they plug in
the tester, and your VIN doesn't show on the "recall complete"
list. You don't get inspected. That has happened before for other recalls.
I'm betting the fix
will be to re-flash the ECM software to remove the "switch". Then
run each one through the full EPA test regardless of registration
state. That because this if a federal law that was broken.
What will be fun will be watching all the johnny racer types who
modified the cars by removing emissions gear and "tuning" the ECM.
VW could actually show them to the EPA and say "THEY removed the
systems so they should pay a fine as well".
When has the EPA ever gone after individual passenger car vehicle
owners?
Happens a lot more than you might think. States get into the act under
the umbrella of the EPA laws.
VW intentionally wrote software for their vehicles with the express
intent of violating the EPA laws. They admitted to that already so it
will be interesting to see what happens. The EPA could recall the
cars, judge them as "unrepairable gross polluters" and have them
crushed. I doubt they will go that far but they have done it before
under the "cars for cash" BS.
Or, the EPA could require that all the cheating cars be re-programmed to meet
requirements all the time, and owners could sue VW's ass off for cheating them,
since the resulting performance will be terrible.
I doubt they will be able to sue. The "normal" EPA test numbers for
these vehicles have alwas been "low" compared to the ones outside the
lab. I hear folks all the time bragging how their VW gets 45 mpg but the
sticker says it should be getting 38 mpg. VW can re-flash the ECM and
simply say the the TEST (remember the tests would have been with the
emissions systems working)mpg is the correct number and their 45 mpg was
a fluke.
--
Steve W.
C
Cursitor Doom
Guest
On Sat, 19 Sep 2015 10:45:01 -0400, Ed Pawlowski wrote:
Sorry, I should have mentioned that the position I set out is that under
English law and other jurisdictions will no doubt differ.
Do you know of any claims denied because the owner did not get an oil
change? Dirty air filter?
Sorry, I should have mentioned that the position I set out is that under
English law and other jurisdictions will no doubt differ.
M
micky
Guest
In alt.home.repair, on Fri, 18 Sep 2015 22:45:53 -0400, Ed Pawlowski
<esp@snet.net> wrote:
Many corporations have no morals these days, and like most criminals,
they think they won't get caught. Do you remember Bank of America,
how when it got several checks whose total exceeded the money in
someone's checking account, regardelss of the order they came in, they
would process the biggest ones first, so as to empty the checking
account so that all the little checks bounced, giving them as much
insufficient funds fees as possible. That was outright stealing by the
Bank of America. They only changed because the government caught them
and made them.
I had occasion to be in a Wells Fargo branch, and I was telling the bank
officer why I despised Bank of America and he was telling me I should
change to Wells Fargo, and 6 months later, 2 or 3 years afer the
incident with Bank of Am. and I reed in the paper that Wells Fargo is
doing the same thing, and they didn't even stop after Bank of Am got
caught. They are also thieves and if they don't steal more often, it's
because they think they'll get caught, not because those in charge have
any morals.
<esp@snet.net> wrote:
On 9/18/2015 8:19 PM, Ewald Böhm wrote:
Apparently Volkswagen/Audi cheated on the USA emissions tests since
2009 to 2015 by turning off the EGR to lower nitrogen oxide emissions
ONLY when the car was being tested for emissions.
REFERENCES:
http://blog.ucsusa.org/volkswagen-caught-cheating-vehicle-recall-887
http://www.engineering.com/AdvancedManufacturing/ArticleID/10688/VW-Caught-Cheating-on-EPA-Tests.aspx
http://hothardware.com/news/vw-intentionally-programmed-engine-software-to-cheat-emissions-tests-forced-by-epa-to-recall-482k-vehicles
etc.
My question is HOW did the car *know* it was being *tested* for emissions?
I found that interesting for two things. I assume the car's computer
knows an instrument is plugged in so it changes the program.
I also find it interesting that a large allegedly reputable company
would do something intentional to cheat like that. Too easy to get
caught or ratted out.
Many corporations have no morals these days, and like most criminals,
they think they won't get caught. Do you remember Bank of America,
how when it got several checks whose total exceeded the money in
someone's checking account, regardelss of the order they came in, they
would process the biggest ones first, so as to empty the checking
account so that all the little checks bounced, giving them as much
insufficient funds fees as possible. That was outright stealing by the
Bank of America. They only changed because the government caught them
and made them.
I had occasion to be in a Wells Fargo branch, and I was telling the bank
officer why I despised Bank of America and he was telling me I should
change to Wells Fargo, and 6 months later, 2 or 3 years afer the
incident with Bank of Am. and I reed in the paper that Wells Fargo is
doing the same thing, and they didn't even stop after Bank of Am got
caught. They are also thieves and if they don't steal more often, it's
because they think they'll get caught, not because those in charge have
any morals.
M
micky
Guest
In alt.home.repair, on Sat, 19 Sep 2015 04:42:00 +0000 (UTC), Ewald Böhm
<ewvesb@gilltaylor.ca> wrote:
Only with half of what you say. They will do t he same on the
emissions test, and continue to pass unless something is broken.
But yes, that means they'll get lower mileage, not just during the test.
>Is there anything "good" that will happen if the owners "fix" their cars?
VW should pay them for the extra gas they will have to buy, and pay them
for the time it takes to go to the gas station and get it.
<ewvesb@gilltaylor.ca> wrote:
On Fri, 18 Sep 2015 22:45:53 -0400, Ed Pawlowski wrote:
I also find it interesting that a large allegedly reputable company
would do something intentional to cheat like that. Too easy to get
caught or ratted out.
According to the news reports, VW admitted culpability.
If I were the owner of the affected cars, I would NOT bring them in for
the recall, since it's not a safety issue.
They will definitely lose performance after the "fix" (while they will
also do worse on emissions testing results).
It's a lose:lose situation for the car owner to get the car "fixed", I
think, because of those two results.
Do you agree?
Only with half of what you say. They will do t he same on the
emissions test, and continue to pass unless something is broken.
But yes, that means they'll get lower mileage, not just during the test.
>Is there anything "good" that will happen if the owners "fix" their cars?
VW should pay them for the extra gas they will have to buy, and pay them
for the time it takes to go to the gas station and get it.
M
micky
Guest
In alt.home.repair, on Sat, 19 Sep 2015 04:45:38 +0000 (UTC), Ewald Böhm
<ewvesb@gilltaylor.ca> wrote:
Maryland used OBD on cars new enough. That includes my 2000 car, but I
don't think included my 1995 car.
(For the 1995 it used the dynamometer and tailpipe stick) I think when
I turn 70, if I don't drive too much, I won't have to be tested. Or
my car.
<ewvesb@gilltaylor.ca> wrote:
On Fri, 18 Sep 2015 22:45:53 -0400, Ed Pawlowski wrote:
I assume the car's computer
knows an instrument is plugged in so it changes the program.
Very few states use OBD emissions testing, and certainly California
doesn't yet, where California is fining VW along with the EPA.
http://www.arb.ca.gov/msprog/smogcheck/march09/transitioning_to_obd_only_im.pdf
Most use tailpipe testing.
Some, like California, run the car through the Federal Test Procedure
on a dynomometer.
Given thats at least three different procedures (where each state can
easily be different), I don't see *how* the engine computer *knows* it's
being tested for emissions.
Since almost no states use the OBD method, that's why I asked how the car
knows it is being tested.
Maryland used OBD on cars new enough. That includes my 2000 car, but I
don't think included my 1995 car.
(For the 1995 it used the dynamometer and tailpipe stick) I think when
I turn 70, if I don't drive too much, I won't have to be tested. Or
my car.
J
John-Del
Guest
On Saturday, September 19, 2015 at 2:24:39 PM UTC-4, cl...@snyder.on.ca wrote:
Depends on the state. In CT, the car only needs to pass the test for the year the car's VIN indicates, assuming they test old cars (CT doesn't on cars earlier than 1990).
Spot checking of modified vehicles at large "car shows" has been
promised, and reported. Just because your car is registered as a 1927
model "T" ford does not mean it is exempt from emissions testing if it
has a 2009 Chevy LT between the frame rails.
Officially it needs to meet the requirements for the 2009 vehicle the
LT was originally supplied for (determined by the engine number).
Depends on the state. In CT, the car only needs to pass the test for the year the car's VIN indicates, assuming they test old cars (CT doesn't on cars earlier than 1990).
B
Bob F
Guest
.. wrote:
Thank you for that little bit of education.
On 9/19/2015 3:15 PM, TekkieŽ wrote:
Then the lead issue. I don't know if lead in gas was harmful or not
but that train has left the station.
Wow, you are remarkably uninformed, if not downright stupid.
Educate yourself, if possible, by reading about Clair Patterson,
a scientist who was attempting to establish the true age of the
Earth and serendipitously, by the failure of his early attempts
to create a clean room, discovered the grave neurotoxin
danger poisoning us all.
Thank you for that little bit of education.
Guest
.."I'd like to know how the EPA found out about this hack "
Good question. I can understand how an individual could, for example "how come my car runs like shit right after testing" and this happening to everyone who owns that model. Then it gets around on the internet, the rest is history. Reverse engineering by watchdogs, or possibly reverse engineering efforts by a rival car company.
But there is another issue. You know EGR does not turn a sportscar into a Pinto necessarily. Long time ago we used to plug up the PCV on cars because "It is losing vacuum with that thing". Yeah, not enough to even notice, and plus PCV makes your oil last longer. It also eliminates the crankcase smell.
The EGR system actually makes cheap gas burn better. The system basically reduces the O2 content of the mixture which slows down the burning. this is what the additives in premium gas do. This allows for higher compression ratios and more advanced ignition timing.
With premium (higher octane) gasoline you actually get a little bit more power. In the old days we could set up our cars for premium, and you tell your olady "Don't put regular in my car !". Now the engine is tuned to the gas dynamically. The ECM literally advances the timing until the knock sensor reports a knock, and it is right there, you never hear it. With cheaper gas it will retard the timing.
If you disconnect the EGR in an engine on a modern ECM it will sense a knock and retard the timing to the point where you are not getting much of a bost - if any. However on the manufacturing level you can change the program in the ECM to tolerate more knock, especially at 2,500 RPMs and heavy load full throttle. If that is the engine condition right now, WolksVagon can be pretty sure the driver it not going to object to a little ignition "ping".
The old days were great. We went to the car lot, said "Gimme the keys to that Olds over there" and they did not aask for a license or anything, you took it for a ride with the dealer plate and put it on the freeway and see how passing gear works, see i it peels rubber, see if it overheats. Then you find out whether it has brakes or not.
Now, you get a carfax on it, look up the previous owner on the county register to see how many times they have been sued or arrested, have someone run the codes to make sure it hasn't been reset. Use a DOT approved tread depth gauge... Sickening.
They used to sell cars touting their performance, now they tout the internet access and cupholders. and some of them run Windows with the touch screen.. Look Man, I want a spedometer, oil pressure, engine temperature and amps or voltage gauges. Matter of fact, keep your damn radio, I'll go to Crutchfield. Fuck all that.
But you simply cannot buy that, you have to buy what they got.
Caveat emptor.
Good question. I can understand how an individual could, for example "how come my car runs like shit right after testing" and this happening to everyone who owns that model. Then it gets around on the internet, the rest is history. Reverse engineering by watchdogs, or possibly reverse engineering efforts by a rival car company.
But there is another issue. You know EGR does not turn a sportscar into a Pinto necessarily. Long time ago we used to plug up the PCV on cars because "It is losing vacuum with that thing". Yeah, not enough to even notice, and plus PCV makes your oil last longer. It also eliminates the crankcase smell.
The EGR system actually makes cheap gas burn better. The system basically reduces the O2 content of the mixture which slows down the burning. this is what the additives in premium gas do. This allows for higher compression ratios and more advanced ignition timing.
With premium (higher octane) gasoline you actually get a little bit more power. In the old days we could set up our cars for premium, and you tell your olady "Don't put regular in my car !". Now the engine is tuned to the gas dynamically. The ECM literally advances the timing until the knock sensor reports a knock, and it is right there, you never hear it. With cheaper gas it will retard the timing.
If you disconnect the EGR in an engine on a modern ECM it will sense a knock and retard the timing to the point where you are not getting much of a bost - if any. However on the manufacturing level you can change the program in the ECM to tolerate more knock, especially at 2,500 RPMs and heavy load full throttle. If that is the engine condition right now, WolksVagon can be pretty sure the driver it not going to object to a little ignition "ping".
The old days were great. We went to the car lot, said "Gimme the keys to that Olds over there" and they did not aask for a license or anything, you took it for a ride with the dealer plate and put it on the freeway and see how passing gear works, see i it peels rubber, see if it overheats. Then you find out whether it has brakes or not.
Now, you get a carfax on it, look up the previous owner on the county register to see how many times they have been sued or arrested, have someone run the codes to make sure it hasn't been reset. Use a DOT approved tread depth gauge... Sickening.
They used to sell cars touting their performance, now they tout the internet access and cupholders. and some of them run Windows with the touch screen.. Look Man, I want a spedometer, oil pressure, engine temperature and amps or voltage gauges. Matter of fact, keep your damn radio, I'll go to Crutchfield. Fuck all that.
But you simply cannot buy that, you have to buy what they got.
Caveat emptor.
S
sms
Guest
On 9/19/2015 10:54 PM, Ewald BĂśhm wrote:
You said it yourself. You can't pass emissions with pending codes. They
have to run a scan to check this. That's why before they even stick the
exhaust gas analyzer into the tail pipe they read the codes. No point
proceeding with the test if there are unset codes, though if you're
paying for the test they will complete it to check for other failure
modes as well.
At least that's the procedure for the four vehicles I have had smogged
every two years for the past 20 or so years. Also the procedure at the
repair shop my relative operated until he sold it last month, and he
probably did 3000 or so smog checks per year.
I guess you could claim that it is not a requirement to run a scan, it's
just a requirement that you can't pass with pending codes and the only
way to check for pending codes is to do a scan. If there is another way
to check for pending codes other than doing a scan you would be correct,
but I don't think that there is.
On Sat, 19 Sep 2015 05:44:13 -0700, sms wrote:
Can't speak for all states, but in California one of the first steps in
an emissions test is for the codes to be read via the OBD-II port.
I know this intimately not to be true, in the truest sense of what you say.
While many stations will certainly do a courtesy OBD scan, since you can't
pass CA emissions with a given number of pending or set codes or unset
monitors (the numbers of each are depending on the year of the vehicle),
it is absolutely NOT a requirement to run the OBD scan.
Look it up. I did.
You said it yourself. You can't pass emissions with pending codes. They
have to run a scan to check this. That's why before they even stick the
exhaust gas analyzer into the tail pipe they read the codes. No point
proceeding with the test if there are unset codes, though if you're
paying for the test they will complete it to check for other failure
modes as well.
At least that's the procedure for the four vehicles I have had smogged
every two years for the past 20 or so years. Also the procedure at the
repair shop my relative operated until he sold it last month, and he
probably did 3000 or so smog checks per year.
I guess you could claim that it is not a requirement to run a scan, it's
just a requirement that you can't pass with pending codes and the only
way to check for pending codes is to do a scan. If there is another way
to check for pending codes other than doing a scan you would be correct,
but I don't think that there is.
S
sms
Guest
On 9/19/2015 10:51 PM, Ewald BĂśhm wrote:
How did they check for pending codes if they did not use a code scanner?
You can't pass with more than two pending codes (one on some years).
That shop would be shut down by the state if it was found that they were
passing cars without checking for pending codes.
On Sat, 19 Sep 2015 05:30:45 -0400, Steve W. wrote:
How do you figure that "almost no states use OBD" testing. In fact most
of the states do not use a dyno any longer.
I just had mine tested, in California, and they used a dyno.
No OBD hookup whatsoever.
How did they check for pending codes if they did not use a code scanner?
You can't pass with more than two pending codes (one on some years).
That shop would be shut down by the state if it was found that they were
passing cars without checking for pending codes.
S
sms
Guest
On 9/19/2015 8:15 PM, clare@snyder.on.ca wrote:
That was the big problem in California. A significant number of
out-of-compliance vehicles were causing most of the pollution. Even
though percentage-wise the number of such vehicles was small, in
absolute numbers it was large enough to cause a problem.
The "catalytic converter test pipe" was popular for a while. But as you
said, in most cases, all the tampering with emissions controls did not
have any effect on mileage and/or power.
Exactly what are you trying to say??? My reply was to say there were
many instances of people - hobbyists and mechanics alike, screwing
with emmission controls in an attempt to defeat them and get better
mileage and power, and getting (usually) neither.
That was the big problem in California. A significant number of
out-of-compliance vehicles were causing most of the pollution. Even
though percentage-wise the number of such vehicles was small, in
absolute numbers it was large enough to cause a problem.
The "catalytic converter test pipe" was popular for a while. But as you
said, in most cases, all the tampering with emissions controls did not
have any effect on mileage and/or power.
Guest
"The improvement in emissions was at least an order of magnitude more
than the "dilution" would have produced. This was in the days before
"storage" catalysts that can store oxygen (part of the reason mixtures
MUST oscillate around stoich - go rich, then lean, then rich) Air
needed to be added in order for the oxidizing catalist to function
effectively. "
Wow, even I wasn't aware of that. I was aware that actually a car can be made to run better without a cat, to the point where the emissions would be about the same, that something has to keep that cat lit, but not why they did that. I thought it was just like a servo hunting and or some reason they couldn't get rid of it. But i have been out of the loop for some years now.
The bottom line is the only way to test a cat is by O2 content. They cnnot check by emissions because in a properly running car, and I mean REALLY properly, there are no emissions to convert.
The cat does not help cars the really run right, it helps cars with cumulative inaccuracies in the build. Normal production tolerances do not have to be as tight. Hell, they don't even lap the valves in anymore. That'll save you a few manhours on something with 32 valves eh ?
I still maintain that no regulation has passed without the approval of the automakers. They have lobbyists. The regs give them an excuse for highway robbery. Literally. It also makes starting a new car company much harder, thus keeping down competition. No more Tuckers !
Guest
>"the archaic Kettering ignition,..."
There's a word I haven't heard in a long time.
There's a word I haven't heard in a long time.
S
Scott Dorsey
Guest
sms <scharf.steven@geemail.com> wrote:
They look for the light on the dashboard that indicates codes have been
logged.
In some places they always use the scanner to make sure, for instance,
that the ECU wasn't reset immdiately before taking the car in for
inspection. In some places they do not.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
On 9/19/2015 10:51 PM, Ewald BĂśhm wrote:
On Sat, 19 Sep 2015 05:30:45 -0400, Steve W. wrote:
How do you figure that "almost no states use OBD" testing. In fact most
of the states do not use a dyno any longer.
I just had mine tested, in California, and they used a dyno.
No OBD hookup whatsoever.
How did they check for pending codes if they did not use a code scanner?
You can't pass with more than two pending codes (one on some years).
They look for the light on the dashboard that indicates codes have been
logged.
In some places they always use the scanner to make sure, for instance,
that the ECU wasn't reset immdiately before taking the car in for
inspection. In some places they do not.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
Guest
On Sun, 20 Sep 2015 12:12:31 -0400, Scott Dorsey wrote:
That.
They look for the light on the dashboard that indicates codes have been
logged.
That.
Guest
On Sun, 20 Sep 2015 07:54:12 -0700, sms wrote:
You have a good point.
I need to recheck my facts.
You said it yourself. You can't pass emissions with pending codes. They
have to run a scan to check this.
You have a good point.
I need to recheck my facts.