Mass air flow sensor. That's all I need to say. Get one from a wrecker or buy one from gm, you might be able to clean it with break cleaner. You have nothing to lose. But that sounds to me like a maf sensor. My 3.8 intrigue did the exact same thing. It didn't even throw a code, if I remember correctly. I just figured it might have been some oil from the k&n air filter that got on the sensor. But yah that's what it was. If that's not what it is then look at the fuel pressure regulator. But I'm 80% sure.

Answered by Eyeballsdeep
1 question asked

i would also start with fuel pressure check. low fuel pressure will cause this condition as well as the mass air flow

Roy

Answered by ASEMaster6371 (expert)
24,854 answers provided

Thank u! I if I click on the repair manual will it give me location and description of MAF sensor& how to do pressure check?

Response from denisepatterson928
2 questions asked

You need a fuel pressure gauge, there is a shrader valve on the fuel rail that looks like a tire valve stem, thats the only way to check should be any where from 40 - 55 psi at the rail. Check the vacume line coming out of the regulator if its damaged or collapsed aswell.

Answered by Eyeballsdeep
1 question asked