p0171
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C
P0171 and P0174
Ok, I have a 2005 Chevy Silverado 1500 5.3 and I am getting these codes. I’ve done a little bit of research and I just need some ideas on what I should check first. The truck has already had the intake gaskets replaced and they are brand new. I should also add that the truck drives normally and...- Coolwolf1015
- Thread
- lean p0171 p0174
- Replies: 5
- Forum: Engine & Performance
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