Mass air flow sensor low circuit and up Stream 02 oxygen sensor bank one sensor circuit?

Tiny
AKATONY
  • MEMBER
  • 1999 CHEVROLET MALIBU
  • 3.1L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 2,304,000 MILES
When I start the car up and let it warm up and when I start to drive for about 30 minutes or what not the engine stalls at the red light.
Thursday, October 3rd, 2024 AT 11:06 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,690 POSTS
What are the code numbers please? I have seen the MAF short out and cause stalling, I would unplug it to see if it makes a difference. Here is the location and how to get the codes for us:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

This guide can help as well:

https://www.2carpros.com/articles/engine-stalls

Check out the images (below). Please let us know what happens.
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Friday, October 4th, 2024 AT 12:13 PM
Tiny
AKATONY
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  • 1 POST
How do much does it cost to fix it for from cutting off?
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Friday, October 4th, 2024 AT 4:38 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,690 POSTS
That is hard to say until we figure out what the problem is. I could be as simple as a loose fuse and as involved as a rebuild PCM. Did you try unplugging the MAF sensor? Also, what are the code numbers?
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Saturday, October 5th, 2024 AT 9:36 AM

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