Short Term Fuel Trim B2 is .80 on initial cold startup???
08-30-2011, 11:09 PM
#1
Short Term Fuel Trim B2 is .80 on initial cold startup???
The first time I start my car when it is cold it runs super rich. I put it on the scanner and I am at .80 of Short Term Fuel Trim B2. That is what I am at on WOT at 4k rpm....
But, if I shut off the car and restart it I hover at .95 to 1.02.
No codes.
I was thinking I might have a lazy O2 sensor, but why is it fine after I restart the engine?
Any suggestions?
But, if I shut off the car and restart it I hover at .95 to 1.02.
No codes.
I was thinking I might have a lazy O2 sensor, but why is it fine after I restart the engine?
Any suggestions?
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