what does p0171 and p0174 mean what part is it?
Nov 28, 2007 at 7:33 PM
code 1997 gmc jimmy 4wd
1997 GMC JIMMY
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The codes P0171 and P0174 both indicate that the engine's air-fuel mixture is running too lean. Here is a guide to help you fix it but I can tell you a clogged fuel filter, vacuum leak or a bad MAF sensor can cause this problem.
https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers
Here is the locations for the MAF sensor and fuel filter. Check out the images (below). Please let us know what happens.
https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers
Here is the locations for the MAF sensor and fuel filter. Check out the images (below). Please let us know what happens.
Images (Click to enlarge)
Nov 28, 2007 at 7:42 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.