Check engine light they recommend MAF sensors?

RFRAZIERRVT

MEMBER
2012 CHEVROLET EQUINOX
3.0L
V6
2WD
AUTOMATIC
162,000 MILES

I had codes checked, and they recommend MAF sensors. There is no change since replacing it. It has been difficult to start after fill up twice now and has rough idle. I assume that it is probably a fuel pressure sensor or fuel pump. What is the best way to determine definitively?

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
45,988 POSTS

The fuel pressure sensor will make it idle rough and have low power, but can I ask what the codes are, so we don't go down the wrong trial in the repair process? This guide can help, and I have included the location of the fuel pressure sensor so you can check it out and replace it if necessary.

https://www.2carpros.com/articles/repairing-engine-rough-idle-issues

Check out the images (below). Please let us know what happens.

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Sunday, September 15th, 2024 AT 2:55 PM

RFRAZIERRVT

MEMBER
2 POSTS

Not sure which code but I believe it was “running lean/bank 2”?

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Sunday, September 15th, 2024 AT 3:05 PM

KEN L

MASTER CERTIFIED MECHANIC
45,988 POSTS

Sorry, I linked the wrong guide, I fixed it. Yep, a lean code could be the MAF sensor, here is the location, also go over this guide as well:

https://www.2carpros.com/articles/repair-lean-mixture-codes-p0171-or-p0174-on-some-manufacturers

The MAF sensor is a normal service item BTW. Check out the images (below). Please let us know what happens.

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