Hey guys, decided it was time to change my spark plugs, i put in the NGK BPR7ES plugs, gapped them at .026.. Heres the thing I can here is miss when I rev up the car.. no miss fire codes at all.. any suggestions? thnxs

 

Check your injector connections. Missfires can be cause by many other factors than just plugs.

 

hmm yes this is true, but the car was tuned not to long ago, no problem showed up?

 

bump

 

check your injector connections, check the plugs. Did you change anything else? This happened to me after i installed a bunch of stuff. Took it to the shop. Shop owner puts it on the dyno after i drove it there gently. Car screamed to 8,500 rpm no missfire.

 

check the injectors they are tight on there.. didnt change anything else.. tuned the car bout 4 weeks ago. i dont see anything wrong wtih the plugs.. not cel. just cant figure it out..