MISS DURING IDLE AND TO MUCH FUEL TO MOTOR

10

Asked by SHIRLZ26 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

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

9,745

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

1 people found this helpful.
170

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.

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