You can backprobe the MAF harness and check the voltage. First, you could check battery volatage and then signal voltage. It should be .2 - 1.5V at idle. As you increase the engine RPM the MAF signal should increase to 2.0V or slightly above. If that doesn't work, use an ohmmeter on the harness and see if there is a broken connection. If that doesn't work, your MAF is fried.
------------------
Blueneonman -
'95 5.0L Mustang GT Convertible | K&N Custom Cold Air Intake | FMS 9mm Wires | Hollow Cats | Flowmaster 2 Chambers | BBK Subframes | 6-pt Rollcage | King Cobra Clutch | FMS Adjustable Clutch Cable | B&M Short Throw | Coolest Neon Lighting on a Mustang EVER!
Homepage:
http://www16.brinkster.com/blueneonman/