I took my monte to get emissions testing today and the car failed due to a check engine light. The code was P0102 and it's saying that the MAF is getting low voltage... I think the cause of this is because of a new sensor plug that I may have wired incorrectly... I unplugged the sensor while the car was running, and it stayed running... Does anyone know if there's some type of wiring diagram that I can look at in order to properly wire this sensor plug? Thanks.

 

So I double checked all the connections for my new maf plug and everything looked good I also found a wiring diagram online... so I know its wired correctly. HOWEVER, the car still has a check engine light after I cleared it (same code). Does anyone know any possible fixes/things I can check? Thanks.

 

If the wiring looks good, is the sensor itself dirty? Worth a quick spray of MAF cleaner to check it.

 

Ok Thanks! Didn't even think of trying that. I'll let you know if that fixes it. (Also, hooked up a tech 2 and noticed the MAF is displaying 0 airflow).

 

If it's displaying 0, then something is wrong with the MAF. If it was dirty it might show lower than it should be, but it would still show something

 

New MAF time for certain.

 

Threw in a new AcDelco MAF today and cleared the code. So far so good! Car passed emissions and the car runs much better. Thanks everyone who helped me diagnose the issue!

 

Glad to you got it fixed!