Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
I have worked for Mitsubishi since before this model was released and I can count on one hand how many bad PCMs I've seen... to say they are reliable is an understatement for sure. When I have seen them fail it is exclusively for charging problems or throttle body operation problems. Never anything like you describe with fueling.
Were aftermarket cam or crank sensors used on the vehicle? This era of Mitsubishi has nearly zero tolerance for aftermarket hall effect sensors and can lead to this behavior.What is your operating fuel pressure (engine running pressure)?
Was the timing belt changed trying to correct this issue, or had the belt failed?
Thanks.When you changed the converters did you do the big under car converter too or just the manifold one?If both, are you able to set up an auxiliary fuel supply (pressurized fuel can etc) to rule out any fuel quality related issues?
Also if we could put the original cam, maf and MDP sensors back in that would be helpful to rule out aftermarket related issues (Again this model does not get along with chinese reproductions unfortunately).
Great.Lets get the pressure can with fresh fuel (not from the tank of course) set up and compare behavior, and the original sensors reinstalled too while we are at it.
No problem at all. I will be here off and on throughout the day and evening, just post when you have some results and I will get back with you as soon as I see it.