1998 Mitsubishi Galant "engine miss runs rich" Questions

...rich fouls plugs and starts missing seems to run better on higher octane fuel been told could be o2 censor how do i test this or bypass it Well you can't bypass the sensor. If the sensor was faulty ...

...engine surges at idle running way to rich and miss. at higher rpms .I changed fuel filter spark plugs . what can it be? How do you know it is running rich? The computer controls fuel delivery. If it ...

...miss fires new engine and all sensors on engine Make sure the spark plug wires are on right (propper firing order), and check the TPS sensor. Are there any exhaust leaks or vacuum leaks? Did you use ...

...ENGINE IT MISSES A LITTLE ,IT RUNNING TO RICH.SHOOT OUT BLACK SMOKE,IT IDLE'S HIGH AND LOW REPEATILY.WHO COULD HELP ME WITH SOME ANSWER'S.THE TIMING SETTING IS ON TIME. check your spark plug wires to ...

...miss fire doubtful two O2 sensors bad at one time most likely coolant temp sensor is bad causing engine to run rich this will cause O2 sensors to throw a code(thats what they are there for..exhaust ...

...engine miss fire. have replaced plugs wires cap and button. dont know what else to do!!! When there is an engine misfire it could be gas or spark related. Or, the oxygen sensor may not be operating ...

to them. If they are wet or black engine is running rich. Easier still depending on the year of your Blazer, is to have the computer scanned for codes. Usually this will tell you exactly what is wrong

...engine will run better s- plugs on driverside 1&2 from front were ok but 3 was wet 4 apear to have black suite on the electrode not the cermic help fuel is too rich dodgy injector or ...

...engine can go rich for many reasons. there are tests for each. check fuses scan the PCM first. got errors, they are REAL report them or read the FSM on what to do for each , its there. read it. fuel ...

...is my 1988 ford ranger 2.0L running rough and missing and blowing black smoke Sounds like it is running rich, could be a stuck injector or a bad water temperature sensor. Is the check engine light