MISS DURING IDLE AND TO MUCH FUEL TO MOTOR

10

Asked by Aug 07, 2011 at 10:37 PM about the 1991 Mitsubishi Galant Base

Question type: Maintenance & Repair

CAR MISS FIRES DURING IDLE AND TO MUCH FUEL GOING TO MOTOR ALOT OF BLACK SMOKE COMING OUT OF EXHAUST

6 Answers

155

o2 sensor problems or timing off.

10

REPLACED O2 SENSOR,MASS AIR FLOW SENSOR , ROTOR AND CAP ,PLUGS PLUG WIRES, SOME THING IS STILL THROWING THEYS CODES UP EVRY TIME I START THE CAR, TALKING TO OTHER PEOPLE AROUND MY TOWN AN THEY SAY THAT THE ECM/ECU WOULD CAUSE THESE CODES TO COME BACK ALL THE TIME?

1 people found this helpful.
50

I too have the same problem. Changed my airflow sensor, plugs,fuel pump GDI pump,oxygen sensor to no avail

6,535

did you guys think to check your fuel pressure regulator? give that a shot also what are your check engine light codes?

100

possible leaking injector. most likely bad o-2 sensor or MAP sensor but do check regulator see if you can brake it down to a individual cylinder or are all cylinders running rich pull plugs and see if one plug is blacker than the others would be your first step.

6,535

what are the codes ??? that would help a lot you know

Your Answer:

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