05 LLY Injector Issue (no surprise)

[Hillian26]

I've got an 05 LLY that is giving fits! At random times, usually after I've drove several miles, if I have to stop for a traffic light or stop sign, when I go to take off again, the truck blows white-grayish smoke. It has no power and at heavy throttle, I get a LOT of chatter under the hood. This has happened for a few seconds then clears off and has lasted for several miles. The codes that are coming up are p0206 p0207 p2146 which is injector 6 & 7. I've tried to ice pick both and the problem still occurs. The truck runs great and does well on MPG when it doesn't have the issue so I don't think the injectors are bad.

Anyone have some suggestion on how to fix this? Thanks in advance.

 

[Summitlly]

Did you check the wire harness up by the FICM? They sometimes rub threw on the bracket.

 

[Hillian26]

I have and they seem to be ok. I'll for sure go back and double check and make sure nothing is rubbed through.

 

[catman3126]

check codes and do the ice pic for 2 and 7 at the very least but see what code is coming up when this happens.