Best way to check a maf???

[gm_classic]

Checking the output voltage of a maf sensor at the pcm terminal I got 2.43v@ idle. When I gave the car a little throttle the reading went down to about 2.35v. Is this normal? I thought the output was supposed to rise with more air passing across the wire:opcorn:

[HotZ28]

A full function scanner is the best method of testing. Click Here for more info.

[polarzak]

Originally Posted by HotZ28

A full function scanner is the best method of testing. Click Here for more info.

Just a funny comment....years ago I had an 88 Buick Century which would stall out on occasion. The dealer wanted to hook up scanners, which of course was not gonna' be free, so I took the car to a little country garage and the old fellow came out listened to my story and then hit the MAF with the handle of a large screwdriver. The car immediately stalled. "There is your problem he said"
He was right...picked up a used one from the wreckers and never had a problem after.