p0172 code diagnose and repair

15

Asked by Mar 20, 2017 at 04:54 PM about the 2004 Toyota Tacoma 2 Dr Prerunner Extended Cab SB

Question type: Maintenance & Repair

code p0172 pops up. Cleaned the MAF. Check engine light came back after a short time. How do I diagnose exact problem so I don't spend a lot of $ on parts?

1 Answer

1,645

OK if MAF is now good, 1- check for a vacuum leak. 2-There could be a fuel pressure or delivery problem.

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