Two days after installing my Pacesetter LT's My rpm's have been fluctuating at idle and during acceleration here and there, so i scanned it with the OBD II and getting (P0300 Random/Multiple Cylinder Misfire)
The only thing i can think of is stock ignition wires might be getting too hot near the headers, as the passenger A.I.R. extension touches one of my wires, but im not sure if that might be the problem
If anybody has any knowledgeable input it would be greatly appreciated, Thanxs guys



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2000 Formula A4 3.23's Pacesetter LT's, Catted-Y, Hooker aerochamber, SLP Lid and cold air

 

Maybe one of you plug wires is loose? I would go back and check the plugs and wires.

 

No, that the first thing I checked to see if all the coils where pushed in all the way, especially the back passenger side which is a bitch to get to, I,m just wondering if anybody ever had the same problem

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2000 Formula A4 3.23's Pacesetter LT's, Catted-Y, Hooker aerochamber, SLP Lid and cold air

 

Had the same problem with my LT install, but one of my friends didn't put the back pass. side plug wire all the way on, I know you said you already checked but it's just my .02

 

plug wires loose or they got damaged

 

did you bang into or crack a plug when you were putting the headers on? or did you have the plugs out when you put the headers on?