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Jay, Nissan Technician
Category: Nissan
Satisfied Customers: 18545
Experience:  20+yrs experience with Nissan & Infiniti Trained & Certified.Currently still working for Dealer
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Nissan sentra base: P0171 code...wont pass inspection. 2010

Customer Question

P0171 code...wont pass inspection. 2010 nissan sentra...with 20500. Nissan repair shop wants to kep replacing parts and i drve 50 miles and it pops back on again. They changed mass air flow sensor...then tried seling me a trans because of an old code. Just put new trans in it and no issues. So they cant figure out code. They just reset light and say all is ok. Sarted wanting this fixed in feb due to inspection due a end of march..can anyone help
Submitted: 6 months ago.
Category: Nissan
Expert:  Mike V. replied 6 months ago.
Hi there,Were these factory maf sensors or aftermarket from a parts store?
Expert:  Jay replied 6 months ago.
Hello my name is ***** ***** thank you for your question.What repair shop is doing these checks for you?
Expert:  Jay replied 6 months ago.
The reason I would like to know who is doing the checks is cause with these codes this is normally a MAF sensor issue. If they were trying MAF sensors from your local auto parts store, they never work right. I won a bet with my boss on this. I installed 4 MAF sensors from 3 different auto parts stores, and showed him everyone did not work. If one did meter air properly, it would flat line 02 sensor readings. So let me know who is looking at this issue for you.

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