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2001 GMC Yukon SLT 5.3L getting P0171, P0174, P0300
Hello, first time posting. My brother in-laws Yukon started getting the P0171 and P0174 codes the other day so we cleaned the MAF sensor and the throttle body as well as replaced the engine air filter but the codes came back (he cleared them). Then he got the P0300 code soon after. The car runs...- arkhamfallout
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- 2001 yukon p0171 p0174 p0300
- Replies: 1
- Forum: Engine & Drivetrain
