Chevy / GM P0171 or P0174 System To Lean Bank 1 Bank 2
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YouTubeFlat Rate Mechanic
Chevy / GM P0171 or P0174 System To Lean Bank 1 Bank 2
I'm going to go over some common issues causing the P0171 and P0174 error codes in Chevy and GM vehicles, indicating a system too lean in both Bank 1 and Bank 2. Under standing fuel trim numbers can aid greatly in get to the source of the problem. We start by conducting a smoke test on the intake to detect any leaks. Next, we assess the ...
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