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another MAF sensor (different) question


lo govna

New Member
Joined
Jan 17, 2012
Messages
1
Vehicle Year
1993
Transmission
Manual
Guys, I am a brand new 1993 Ford ranger owner with a 3.0. It has about 97k on it. Got the truck from my dad's friend who told him a mechanic said the MAF sensor was bad. Truck will run when the MAF is unplugged. As soon as you plug it in, the engine dies. I bought a new remanufactured MAF sensor from Autozone. Put it on and the same thing happens. I have spent couple hours on here reading all I can.
I have read the the IAC could be dirty - where is it located exactly?
I have read the air filter hose could be tore up causing the MAF to cause the fuel to shut off. it doesn't appear torn up.
Would having plugs, wires, dist cap, and rotor button replaced help?

Any suggestions are really appreciated, I'm at a loss. I don't know anything about ford rangers or 3.0's.
 
I can send you a schematic of the 93 3.0 engine wiring.
Click on my username and send me a private message with your e-mail address.


Your MAF wires are:
Red 12v from the PCM Relay (Key in Run position)
Black ground
Light Blue/Red stripe goes to Pin 50 of the PCM MAF signal
Tan/light blue stripe goes to Pin 9 of the PCM MAF return

Visually inspect the wiring to the MAF for evidence of melting/overheating
Check the MAF connector pins for shorts to each other and to ground.
 

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