i have a question. my 03 is doing the same thing. question is would a loose connection on the APPS give the same symtoms as when the APPA went out about amonth and a half ago.up until about a week ago it drove fine. then the intermintant miss started up again. and it would only happen at part throttle. (about 1800 - 2200 rpms) when i was going through and inspecting all the electrical plugs for cleanliness and making sure they were secure. i found the APPS plugs to be loose. when i pushed up on it i heard and felt it lock into place. could this have been my latest miss problem.

 

since no comments ill add to what i said. i have had the lift pump relocated to the tank. and have run two bottles of power servic through it (not the winter formula). and am currently running 32oz of lucas fuel injector through it now. also i am at 147000 mls and am going to have my valve ajusted also.

 

No way to tell 100%, but there's a good possibility that your miss was the loose connection. I hope it's gone for good now.

 

drove it today and i didnt notice any probs. till have to have the valve ajusted.
and going to pull the IAT sensor and clean if needed.