P0172 and P0175 after mass air flow sensor replacement

Asked by 96wilson Dec 29, 2018 at 10:09 PM about the 2010 Nissan Frontier SE Crew Cab LWB 4WD

Question type: Maintenance & Repair

So after getting code P0171 I replaced my faulty mass air
flow sensor on my 2010 nissan frontier v6 4.0 and that
fixed that code problem. But after a day of driving I got
codes P0172 and P0175 anyone run in to this problem or
does anyone know what could be causing this

2 Answers

630

Where did you buy the MAF sensor?? I had same problem on 03 ford f150 v6 and i changed everything related to p0171, p0172, p0175 (fuel system too lean or too rich) i did tune up, i cleaned catalytic converters, inyectors, changed fuel pressure regulator and fuel pump and i checked compression on cylinder and i tested air leaks on intake manifold (smoke test) and more and nothing help me but the real problem was MAF sensor, i bought a cheap sensor on eBayal and it was bad being new. So i had to buy a new one on autozone and no more problems!!

1 people found this helpful.

Your right that's what it was. I bought the MAF sensor at napa auto parts. Just so happens it was defective. Replace with a new one and problem gone. Thanks

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