I am getting P0300 which is misfires......I am running the NGK 2 step colder plugs and i managed to gap them to the specified gapping for the kit.. ..if they cannot be gapped could this be the reason im getting the misifire. If so i should get another set and just throw them in there even though the kit called for .035..


Thanks

 

Try gapping them smaller. .032, Im at .028 but im also boosting 25psi. Also try cleaning the injectors seals. i had a random misfire and after cleaning the seals it went away.

 

so u are at .028 and u are not having any misfires...mine has been doing this since i installed the kit..idles rough too

 

cold weather?!?

 

All the time..I'm in Georgia right now in about 60 degree weather...but even does it in the summer when it has as ***** out....is it safe to go smaller with the gapping?

 

im pretty sure that boost reference fuel kit is probably the way to go to stop the rough idle but the misifres i have no idea how to stop considering i have changed the plugs twice already. im not sure about lowering the plug gap considering the kit called for this gapping