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91 Ranger 3.0 will not run with MAF plugged in


madoublet863

Active Member
Joined
Dec 30, 2008
Messages
42
Vehicle Year
91`
Transmission
Automatic
Brand new TPS sensor and brand new MAF sensor, Complete tune up new cap ,rotor, plugs ,wires , and pcv valve and fuel filter.

Engine runs rich and rough at idle with MAF unplugged it wont drive down the road. Soon as you plug up the MAF the engine stalls it kills the fuel pump because if I spray starting fluid into the intake hose right when I plug the MAF back in the engine will attempt to stall but the starting fluid retains it at idle.
Im so lost...
A little history on this I bought this truck knowing the motor was swapped
the egr isn't being used nor is the egr feed back sensor my wiring harness doesn't have anything to hook up to that. And as far as I can tell I cant find any O2 sensors. Plus I also tried another ECU.
Please any guidance
 

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