MAF Issues... - Toyota Nation Forum : Toyota Car and Truck Forums

flyinby · 03-21-2007, 10:56 AM

Quick question guys, i have a 91 celica w/ a 3sgte swap and when the gas is put to the floor the maf seems to be throwing a code causing the engine to run in limp. I know its the maf cuz i get out and unplug it... plug it back in and the engine runs fine until i attempt to give it some gas again, is there any way i can test this before i go replacing the thing?

flyinby · 03-21-2007, 04:39 PM

anyone have any info plz? i priced it and its $780...

customlifestylz · 03-21-2007, 06:32 PM

Did you use the 5sfe maf or 3sgte? And i would try ebay or a jukyard before buying a brand new one. The 5sfe one is 350+ at pepboys and i got two working ones at a yard for $10.

***toyomoho*** · 03-21-2007, 06:56 PM

Sounds like what a bad MAF sensor would do. I wonder if you can spray Seafoam or other cleaners in there and see what happens. Can you find some service info, the MAF system can be checked using a voltmeter? The voltage will vary with airflow.

Try junkyards, web based dealers, Ebay, etc. Saw a MAF for a 3SGTE on a MR2 on Ebay.

flyinby · 03-21-2007, 07:22 PM

could 14lbs of boost cause this error?

flyinby · 03-21-2007, 07:23 PM

it is the 3sgte maf...

***toyomoho*** · 03-21-2007, 07:57 PM

I think the MAF uses a hot wire design. If so, doubt 14PSI would do anything to it.

flyinby · 03-21-2007, 08:33 PM

k thanks for the info