That's a good idea, Tom. I was gonna say, pour a pint of Sea Foam in yer tank and run that through. You might also change your fuel filter ($12 part, easy to swap). Other than that, do all the little stuff you can, oil, oil filter, air filter, etc and see if that makes a difference. How many miles you got?

Is it still throwing codes? Are you getting a check engine light?

Bart