because exhause leaking

來源: nonego 於 2011-06-03 06:26:52 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (235 bytes)

 your bank1 sensor1 detects more o2 then usual. The system thought it's lean and  gave you  p0171 code. Check leakage first and fix it.  if still get same code then clean air flow sensor again.

 

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