[s-cars] Misfire Diagnostic Help?

[Alvin Labonite]

Jim,

You have good points there but in my case, the misfire/stumble/hesitation
(slightly though) is when cruising under 3K rpm. But not all on the RPM
range but mostly around 2800 or 2000. Above 3K and under load or full
boost, there is non and she pulls strong as ever. I have newer O2 sensor,
coolant temp sensor, brand new POS's (yeah two of them for the heck of it).
OEM coils on all 5 which has about 50K miles. Replaced vacuum hoses and
still getting this misfire.. According to a good friend mechanic, might be
dirty or clogged injectors??

-- 
*Alvin*