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#1
02-12-2007, 06:49 PM
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Code help on my Bravada
My wife's 01 Bravada is throwing 2 codes. P0171 & P0174. They are fuel trim system leak bank 1 & bank 2. Any ideas what it is. Really don't have the $$$$ to take the car in, would like to do it myself if possible.
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#2
02-12-2007, 08:04 PM
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Re: Code help on my Bravada
Visually and physically check the following items:
The exhaust system for leaks The fuel filter for restriction The air induction system after the MAF sensor for vacuum leaks The vacuum hoses for splits, kinks, and proper connections The throttle body, intake manifold, and EGR valve for vacuum leaks Idle air control (IAC); if a high or unsteady idle is being experienced. The positive crankcase ventilation valve (PCV), spring and O-ring for proper installation The AIR system for proper operation (if applicable). An AIR system that allows oxygen to enter the exhaust may present a lean condition. The fuel for excessive water, alcohol, or other contaminates VCM and sensor grounds are clean, tight and in the proper location.
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