Piston misfiring Check Engine Light P0304 P0302 P0300 P0303

I am having repeated problems with my pistons misfiring. All of the coils, spark plugs, and wiring are less than year old. Compression tests have come back fine. I have put around 6 bottles of fuel injection cleaner into it this year. I have taken my truck to two different mechanics (who cleaned the fuel injectors) and they are unable to fix it. They can only clean things up and tweak it a bit to get it running smoothly. But a couple months later, it comes back. It idles rough and the acceleration is really inconsistent.

If it isn't the injectors, plugs, coils, or wiring, then what the hell is it?!?!?

Thanks for your time,

Mike

 

Welcome to TW.

Try to not make the same thread multiple times as it'll be harder for anybody to give you answers and for you to ask questions.

One thread keeps things organized and effective.

 

Got it. Thanks.