Need hel0
Asked by uriel503 Mar 19, 2016 at 03:21 AM about the 1991 Mitsubishi 3000GT SL FWD
Question type: Maintenance & Repair
Well i got a 3000gt sl 1991 and i have just replace
the egr valve beacouse it was serging when driving
i smoke test it and the egr was leaking badly so i
replace it n also replace the valve cover gasket as
well the back spark plugs since i didnt have
enough money i bought gasket material n cut
some for the throttle body gasket n the intake
manifold.. I turn it on and still missing fire worst
than before and i dont k ow what could it be help
8 Answers
We smoke test it to see if they seal and they do ..money wise but ill buy the other spark plugs today
Ok but its weird because it only misses fire at idl. But once i put it to drive or reverse it doesnt .. It keeps serging while driving tho
Might be i ve been runing with low tank which could of pick up the trash on the botton of the pan n plug them up?... I put new spark plugs it runs a lil better but still serging n missinfg fire
Ok ill try that im honna have to enty out the tank tho i got full tank from cosco .. N ill buy the techron see what happens..
So just to keep it updated it turn on to be the ignition timing control that is off so it sparks before it reaches top dead center n it running lean
Well ignition timing is good ones you by pass the computer so im trying to see whats messing with it when you dont by pass the computer
Also the timing belt has a line on one side n idk where it it hitting or whats making it smell like burn rubber when its running
It was like 30so it was the injector control module so I changed it I replace it with a new one afterwards I found out that the mass flow sensor was messed up as well so I did some researchand a tow me to check out the computer I checked it out on the computer looks best up to so I guess I have to get a new computer but I don't know where to buy at any ideas?
