What is your question?
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What is your question?
After stopping at stop signs or red lights after it has been running for awhile it hesitates almost every time. Runs great when engine is cold...
2 Replies
Bank #1 system too lean = P0171. Check out the following web page. http://engine-codes.com/p0171_chevrolet.html
So that would make it run good cold but hesitate when its warm?
The information on the link provided a list of components that should ALL be evaluated to pinpoint the problematic one. The video showed the evaluation of P0171 with the use of a professional scan tool. That being said, if the hesitation occurs after eight or so minutes of driving, the air diverter system should be a top of the list suspect, but the other components still should be evaluated for proper operation.