Morning peeps havent been here in a while my car has been running great until just a couple days ago, my car started running and idling real rough. i did a diagnostic code check and those 3 codes appeared, my cars exhaust smells of raw fuel and when i hit the gas when in neutral white smoke comes out, i checked my cylinder #1 for idle changes and yup that one has no change the others do, i have swapped the coil pack just to see it was not the coil pack and it does the same, so coil packs are working, there is no spark going to cylinder #1. i am guessing fuel injector #1 is maybe staying open? someone told me its maybe the head gasket blown. i did buy the gasket to the IACV to replace and clean. is it a PITA to remove the UIM? i have some injectors that i will be replacing. what are some things i should be looking for as well, WHAT DO YOU THINK IT IS? THANKS IN ADVANCED!!!

-Robert

 

Yup, your fuel injector is toast from the sounds of it. Happened to me not too long ago. Lots of threads like this over the past year. Yes, you'll have to remove the UIM to get to injector #1. The job isn't bad at all.

While you're in there, I'd service all the injectors, but at least do injectors 1, 3, and 5 since the manifold will be off. Injectors 2, 4, and 6 are easy and can be done anytime. But again, it's best to service them all.

 

if you have "no spark" on cylinder 1, then that's your problem (though injector may also have issues). you say that you switched coil pack and still no spark on cylinder 1 so you must have some wiring(?)/other issue that preventing spark on cylinder 1. pull spark plug just to verify that that's not the cause and then before playing with injector, re-establish spark on #1! then the fuel being injected into it can be burned etc etc.