97 2.2 cav emssion fail why? - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-20-2012, 10:01 PM   #31
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it wont show htr but does show o2 it stays solid only thing not sold is the EVA
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Old 12-20-2012, 10:10 PM   #32
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this time of year it could be anywhere from a couple days to a few weeks for evap. a bunch of parameters have to be met temp, time, fuel level etc...
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Old 12-20-2012, 10:16 PM   #33
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well thats a pain in but and what is it exactly?
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Old 12-21-2012, 09:36 AM   #34
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evap takes the gas fumes from the tank and vents them into a charcoal canister then when the engine is running it releases them into the intake. the problem is testing the system, gm made it way to sensitive so any little crack in a vacuum line or just barley dry rotted gas cap oring will set off. and theres probably 20 orings and 20ft of hose and a bunch of different components that can fail and as the car gets some age you can see whats going to happen
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Old 12-21-2012, 09:44 AM   #35
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Based on your reference to Kms and the types of e-test results you are posting, it sounds like you are in Canada. If you are, the shop that performed the e-test usually provides an indication of what caused the failure. Were there any notes on your e-test results.
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Old 12-21-2012, 06:37 PM   #36
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ah garage quit early by 2:30pm and wont be open till new year so they pissed me off
ugh

so no retest till then

as for your question yes i in canada
and 2nd they give u a piece of paper what might cause it but i checked atll that i figured i is the Cat i put a brand new one on


but i ask them whats common they tell me cant tell ya has to go on a diagnostic machine like frig i ask whats common on these vehicles tells me nothing is common that goes wrong
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Old 12-21-2012, 07:28 PM   #37
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Sounds like he is trying to scam more money out of you.

I always try to tell people, try to spend as much as possible on a OBD2 scanner. You will save many a headaches in the future.
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Old 12-21-2012, 07:34 PM   #38
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i have to scanners but they dont tell you if the engine is having problems the one does data logging

the hand held i have is a 3130 from Innova
the one for the laptop is a HPTuners and neither tells you or gives me ranges that the sensors should be right so i have no idea what the ranges the sensors should be etc

so it doesnt tell me if the cat is failing etc
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Old 12-21-2012, 07:41 PM   #39
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DSZO: gpgio4jh po[054u

If I had known you had HPtuners, ceo;rvn sdf;ovnsdfe jqt45u Jimminy cricket!!!

Post up a log of your scan.
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Old 12-21-2012, 07:43 PM   #40
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ill have to do it tommorow

and what would i log or do i idle the car?

also the hptuners cant seem to read the 2nd 02 sensor yet the hand held will

ya i bought the hptuners to turn off the stupid anti theft

i hat damn anti theft lol
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