Well following the easy theory I just added a bottle of lucas fuel treatment into the tank, however because its not changing anything I guess that leaves checking gaps tomorrow...., why did you recommend just checking just plugs 5 and 1? Also because I suspect the gaps is not the problem what is the next step I should take in troubleshooting this? For a side question, can misfire codes be stored in the computer without activating the CEL? the reason I ask is because I was debating on scanning the car at schucks tomorrow to see if possibly something was there that wouldnt activate the CEL.