I have a 92mits 3000 with a 1993 or 1994 engine. It is not firing on #3 & #6 cyl. Replaced plugs, wires, coil paks. Does anyone know if the firing comes straight from the computer or does it come from somewhere else. I took it to a garage and it stumped them!?

 

Hi;First you have to test the inyector pulsation in those cilinders.If the car does not have pulsation in those cilinders,maybe you have a wiring problem or a bad ECU.This is a very common problem in those cars.





Maichael