Cylinder 2 misfire with bad gas smell

[auditrackspeed]

My car is running really bad i changed the spark plugs and moved coil packs around i dont know what to do next besides comp test and fuel injector ? Help

[Quattro_The_Dog]

Probably a stuck injector, fix that asap.

[DieselElectric]

Remove fuel pump relay and start the engine, let it die.


Next remove coil pack and push an old spark plug into it, or new, doesn't matter as long as it works. Set the threads of the plug against a valve cover or bolt and have someone crank the engine over.

If you have spark, then move on to fuel injection. If you don't, check wiring.

The fuel smell is probably from unburnt fuel. Spark is easy to test, so check that first.

[f4m0u5]

Dont forget to try swapping icms first and see if the misfire follows before going too far into it.

[landfill]

You can swap plugs and injectors as well.

[landfill]

Move #2 injector over to a non misfiring cylinder report back.

[ShooterMcgavin]

Dont forget to try swapping icms first and see if the misfire follows before going too far into it.

This. I had two misfires on one bank and swapped the ICMs, misfire followed. Replaced the ICM and all good!

[auditrackspeed]

Ok what is the icm ? its on top of the air box correct ?

[f4m0u5]

Ok what is the icm ? its on top of the air box correct ?

This is correct. Swap the brown connectors to the icm with the black connectors and vice versa. Check if misfire follows to the other side of engine.. if it does its ur icm

And if that doesnt work you can swap injectors. I would buy 8 o rings and some lube before pulling injectors. (6 new o rings for the bottom of injectors and 2 new for the top of the two you pull off the fuel rail)

[auditrackspeed]

This is correct. Swap the brown connectors to the icm with the black connectors and vice versa. Check if misfire follows to the other side of engine.. if it does its ur icm

And if that doesnt work you can swap injectors. I would buy 8 o rings and some lube before pulling injectors. (6 new o rings for the bottom of injectors and 2 new for the top of the two you pull off the fuel rail)

Thanks ! Will try it wish me luck

[DieselElectric]

I would still visually confirm spark before going to fuel. But that's me, hate to do extra work for nothing.

Also before pulling injectors, always a good idea to check that the injector is getting the signal to fire with a cheap set of noid lights from harbor freight.

[auditrackspeed]

I switched the icm's around now i have cylinder 5 misfire . Mabe this is a good sign

[DieselElectric]

There it is.

[auditrackspeed]

Fixed thanks everyone