Problem with my v12, help
#1
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My 1992 Mercedes 600sel v12 has 2 cylinders misfiring causing a rough idle.
Almost everything has been checked and we are running out of ideas. We put in new spark plug wires, new injectors,new spark plugs, checked all the grounds, the air flow censor, etc.
Does anyone have any ideas?
Thanks
Almost everything has been checked and we are running out of ideas. We put in new spark plug wires, new injectors,new spark plugs, checked all the grounds, the air flow censor, etc.
Does anyone have any ideas?
Thanks
#8
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I guess I should have asked a different way. Were 3 and 10 misfiring before and after the plug and wire changes?
These plug wires are overly sensitive, IMO. I broke 3 or 4 when I changed plugs on mine. If you have a multimeter you can check the wires for 3 and 10 for resistance.
You can swap the coil packs for 3 and 10 to see if the misfiring moves with them. I'm assuming there are separate coil packs.
These plug wires are overly sensitive, IMO. I broke 3 or 4 when I changed plugs on mine. If you have a multimeter you can check the wires for 3 and 10 for resistance.
You can swap the coil packs for 3 and 10 to see if the misfiring moves with them. I'm assuming there are separate coil packs.
#9
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I HAD A 92 600 ALSO
HAD LEAKS AROUND INTAKE U CAN CHECK WITH ETHER TO SEE IF RPM CHANGES
INJECTOR HARNESS HAD SHORTS AND FINALLY THE MASS AIRFLOW WIRING HAD SHORTS
THE INSULATION MB USED ORIGINALLY IN THAT CAR WAS UNABLE TO TAKE THE HEAT
HAD LEAKS AROUND INTAKE U CAN CHECK WITH ETHER TO SEE IF RPM CHANGES
INJECTOR HARNESS HAD SHORTS AND FINALLY THE MASS AIRFLOW WIRING HAD SHORTS
THE INSULATION MB USED ORIGINALLY IN THAT CAR WAS UNABLE TO TAKE THE HEAT
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