Flunked e-Test
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Joined: Jun 2002
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From: In the garage fixing LT1
Flunked e-Test cc503, headers, cat, no EGR:
HC(ppm) 2500rpm = 404 (limit 200) Idle 691 (limit 200)
Can't figure out why the idle is so high. CO was a pass.
Open to suggestions. PM if you know someone who can get me through.
HC(ppm) 2500rpm = 404 (limit 200) Idle 691 (limit 200)
Can't figure out why the idle is so high. CO was a pass.
Open to suggestions. PM if you know someone who can get me through.
Who did your tune?
There are no more easy passes they video your car and vin.
Why not get a conditional? $250.00-400. depending on the shop.
Get some new lifters and pushrods installed
There are no more easy passes they video your car and vin.
Why not get a conditional? $250.00-400. depending on the shop.
Get some new lifters and pushrods installed
Thread Starter
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From: In the garage fixing LT1
Mine is a 93 LT1 with the chip. Tune was done by PCM for Less. I'm going to have to find someone who can properly tune it I guess. Might have to take a trip to the U.S. with it since nobody in Ontario seems to do chip tuning.
how hot did you have the cat? Get your cat super hot before you go in, don't wait after you arrive, have them pull the car in immediately and do the test.
You're not failing that much. I bet even using some methyl hydrate you'd get it to pass.
Can you bump your idle up? try and get the car to idle at 1000-1100rpm. That does a lot to clean it up
You're not failing that much. I bet even using some methyl hydrate you'd get it to pass.
Can you bump your idle up? try and get the car to idle at 1000-1100rpm. That does a lot to clean it up
Thread Starter
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Joined: Jun 2002
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From: In the garage fixing LT1
how hot did you have the cat? Get your cat super hot before you go in, don't wait after you arrive, have them pull the car in immediately and do the test.
You're not failing that much. I bet even using some methyl hydrate you'd get it to pass.
Can you bump your idle up? try and get the car to idle at 1000-1100rpm. That does a lot to clean it up
You're not failing that much. I bet even using some methyl hydrate you'd get it to pass.
Can you bump your idle up? try and get the car to idle at 1000-1100rpm. That does a lot to clean it up
Not sure how hot the cat was, but the car idled for quite awhile before the test. Idle is at 900rpm. The guy couldn't get the rpm meter to work so he did the idle/high RPM test manually.
I'm not an expert on e-tests, but I thought at 3.5x over on the idle I was pretty bad. Car sat all winter, only drove it a few KMs before testing it. Could have been made worse by toluene added to gas last year.
Got a Temp permit for it. Been driving it to work hoping I can use up the gas and get the ECM to tune the engine better. Will use methyl next test. If it flunks again I guess it's either a tune or the old $400 conditional scam.
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Not sure how hot the cat was, but the car idled for quite awhile before the test. Idle is at 900rpm. The guy couldn't get the rpm meter to work so he did the idle/high RPM test manually.
I'm not an expert on e-tests, but I thought at 3.5x over on the idle I was pretty bad. Car sat all winter, only drove it a few KMs before testing it. Could have been made worse by toluene added to gas last year.
Got a Temp permit for it. Been driving it to work hoping I can use up the gas and get the ECM to tune the engine better. Will use methyl next test. If it flunks again I guess it's either a tune or the old $400 conditional scam.
I'm not an expert on e-tests, but I thought at 3.5x over on the idle I was pretty bad. Car sat all winter, only drove it a few KMs before testing it. Could have been made worse by toluene added to gas last year.
Got a Temp permit for it. Been driving it to work hoping I can use up the gas and get the ECM to tune the engine better. Will use methyl next test. If it flunks again I guess it's either a tune or the old $400 conditional scam.
^^ THAT is bad...yours isn't.
The higher the car idles, the more it cleans up. I don't trust people manually doing crap.
Tips for you:
- call ahead of time and make an appointment. Take the car for a good rip before going into the shop and make sure your car is at operating temp and the cat is nice and hot from a rip.
- Don't let the shop let the car just idle there and make you wait...you want to come fresh off your rip right into the shop and into the machine ASAP. The hotter the cat, the better it works...you give it time to cool and your readings are going to go up
- HC is unburnt fuel, how are your spark plugs? stupid question I know, but are they really old? regardless, you can also try closing the gap on them some...instead of running 0.060 try a .045 gap. You'll get a stronger spark that could help compensate and burn up more of the fuel
- Look into methyl Hydrate, from my understanding it lowers HC but raises NOx, but they don't test for NOx here anymore so who cares.
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First, tune is too rich. Cats can clean up some of it, but not 3x the limit like that. To put in perspective back during my testing with the idle/2500rpm, I failed on the first try after the car sitting a month and just driving it 25 mins.
I came back in after driving 1hr and did the test and at most it cleaned it up 50-75ppm, which was more than enough to get a slight fail to pass.
I came back in after driving 1hr and did the test and at most it cleaned it up 50-75ppm, which was more than enough to get a slight fail to pass.