Failed Emission Need Help
I went through with open exhaust, a huge cam, and it was untuned reeking of raw fuel. As it was on the OBD tester, the employee walked around back and waved in front of his nose making the "This car stinks" face to me.
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I Did a search on here and found info on GM driving cycle. It goes thru what you have to do to force computer to run the cycles. Had to do something like drive at 55mph in 6th gear for 3 miles, let off gas and cost down to 40 while in gear, then climb to 60 etc.... Look into it. If I find it ill link you
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Good luck!
If you KNOW your car will pass the emissions part (tailpipe exhaust, etc.), you can clear your computer with a handheld OBDII tester right before you pull into the place (hide the tester in your glovebox or something). Most of the time, the PCM itself will return "Not Ready," which will force the tester to run a tailpipe test.
Not sure how they do it in Illinois, but this worked with my Blazer in Ohio. Worth a shot, if you have an OBDII tester that can clear codes.
the guy showed me the sheet and told me i was 5x over the legal limit. I reset my battery and went for a quick drive. Went back in the same guys lane and he hooked it up to the scanner. I passed and went on my way.
He currently has 3...So they won't pass him no matter what.
You guys talking about drive cycles and tail pipe tests are pissing into the wind. It takes 10 minutes to 'fix' with the laptop.
Unless the laws are drastically different out there for some reason, you didn't pass with 3 "NOT READY"s.
Comprensive Component - READY
Engine Misfire - READY
Catalytic Converter Eff. - READY
Evaporative Control System - READY
Heated Oxygen Sensor - NOT READY
Secondary Air System - READY
Fuel System Performance - READY
A/C Refrigerant - NOT SUPPORTED
EGR Flow - NOT SUPPORTED
Heated Catalyst - NOT SUPPORTED
Oxygen Sensor - READY
Stored Diagnostic Trouble Codes: NONE
Comprensive Component - READY
Engine Misfire - READY
Catalytic Converter Eff. - READY
Evaporative Control System - READY
Heated Oxygen Sensor - NOT READY
Secondary Air System - READY
Fuel System Performance - READY
A/C Refrigerant - NOT SUPPORTED
EGR Flow - NOT SUPPORTED
Heated Catalyst - NOT SUPPORTED
Oxygen Sensor - READY
Stored Diagnostic Trouble Codes: NONE

NOT SUPPORTED's don't matter. But you're only allowed one NOT READY on 99+ cars...Which is why he failed the first time around. I had the same issue the first time.



