95 Lumina Mass Air Flow sensor

slbcar · 09-13-2009, 05:55 PM

I have a code 34 on the OBD1 and I wanted to check the two possible causes that I understand to be either MAF or MAP senors.
I couldn't find the MAF on this 95 Chevy Lumina. Is there one?
(Issue: Engine stalls at idle <750 RPM)

**octaneman** · 09-13-2009, 09:39 PM

Hi slbcar

The mass air flow usually is located on the intake tube just after the air filter housing with a 3-sometimes-4 prong molex connector. If its not there then it doesn't have one. The MAP sensor has a 3 wire connector with a vacuum line. Testing the MAP sensor will require you to have a DVOM and a vacuum pump. The meter readings should change as engine load changes.

slbcar · 09-14-2009, 08:17 PM

Thanks for the confirmation... no MAF sensor. Traced the harnes from MAP connector back to connector near alternator. Broken wire right at the harness. I managed to free up about a quarter inch of wire and installed a crimp connector. I don't expect this to last forever but at least I confirmed it was the problem and I can figure out a better solution later.

09-13-2009, 05:55 PM	#1 (permalink)
slbcar Registered User Join Date: Dec 2008 Posts: 12 OS: xp	95 Lumina Mass Air Flow sensor I have a code 34 on the OBD1 and I wanted to check the two possible causes that I understand to be either MAF or MAP senors. I couldn't find the MAF on this 95 Chevy Lumina. Is there one? (Issue: Engine stalls at idle <750 RPM)

09-13-2009, 09:39 PM	#2 (permalink)
octaneman Mentor Home Support, Gearhead Automotive Center Join Date: May 2009 Posts: 544 OS: WINXP	Re: 95 Lumina Mass Air Flow sensor Hi slbcar The mass air flow usually is located on the intake tube just after the air filter housing with a 3-sometimes-4 prong molex connector. If its not there then it doesn't have one. The MAP sensor has a 3 wire connector with a vacuum line. Testing the MAP sensor will require you to have a DVOM and a vacuum pump. The meter readings should change as engine load changes.

09-14-2009, 08:17 PM	#3 (permalink)
slbcar Registered User Join Date: Dec 2008 Posts: 12 OS: xp	Re: 95 Lumina Mass Air Flow sensor Thanks for the confirmation... no MAF sensor. Traced the harnes from MAP connector back to connector near alternator. Broken wire right at the harness. I managed to free up about a quarter inch of wire and installed a crimp connector. I don't expect this to last forever but at least I confirmed it was the problem and I can figure out a better solution later.