Question about 2001 GMC Jimmy
Is there a emissions sensor on the fuel tank on a 2001 gmc jimmy that would or could prevent the computer system from resetting? And if so does the fuel tank need to be dropped to change? Station told this is the reason my computer will not reset after replacing secondary air pump and fuse and driving for over 250 miles. No codes are showing up. The cost to replace this sensor is an additional $250 to the already 500 I have spent. Any help would be greatly appreciated. Thank you
I don't think you have anything wrong, I just don't think you have completed the correct drive cycle yet. Some vehicles must be driven in a very specific way before all the monitors will set. Here is the drive cycle that Gm Recommends:
Do not leave the key in prior to the cold start or the heated oxygen sensor diagnostic may not run.
Posted on May 18, 2009
Daves944 I have a preblem with getting my 2001 gmc jimmy to pass emissions due to a code saying the vehicle needs to be put threw a drive cycle. The computer I hooked up to the jimmy says the evap pump isnt ready, I tested the evap pump and its working fine. I followed your instructions on the drive cycle about 7 times and it still isnt working. If you have any suggestions please tell me. Thankyou.
Posted on Nov 21, 2009
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Posted on Jan 02, 2017
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