adsm08
Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
- Joined
- Sep 20, 2009
- Messages
- 34,623
- City
- Dillsburg PA
- Vehicle Year
- 1987
- Engine
- 4.0 V6
- Transmission
- Manual
- Tire Size
- 31X10.50X15
your ECU could even be bad... hate to be the guy to say it, but i've seen it happen.
i'd check wires... ain't there a way to test the wires coming to the MAF? w/ a ohms meter or volt meter or something???
There are resistance specs. If you test it from the PCM connector and if every thing comes up right it's the computer. The other way to do it is disconnect both ends and do a simple resistance test.
I've seen them be bad right out of the box as well. Especially parts store ones.