Backfire? Misfire? Loose Coil Pack - Changed Plugs
 

I have had my kit on for over a year now and had blown a turbo as spoken about in previous thread - YES IT AND EBAY KIT - It runs great BUT - I was driving and heard a loud "POP" or "BANG" which has happened before with a boost leak. All clamps look fine. Now when I drive it backfire or misfires dont know differnce - only when i let off the gas - No real loss in power or anything - just a lil hicup when lettign off the gas - I replaced the plugs and runs MUCHHHH better but still has a lil hicup the it didnt have any other times before this - I am just worried about the sound - No knocking or blown pistons - I have 550cc Daetchwerks injectors on the way and have decided to make this post to determine if I need new coil packs - Any one have the OBX ones? And diff or gains??? thanks!

could just be u running rich....

stick with the factory coils.

do you have a CEL? check for misfire codes. if you have a bad coilpack odds are you'd also get a cel of some kind.

do you have a wideband gauge? i see your in NY and it will lean out a tad in cold weather. keep an eye on that.

sound like a little rich maybe should retune

i'm no expert at all, but just from what you said about the plugs and it running better after you changed them, I would think it is running rich and all that extra fuel dampened the spark plugs (which would explain it running better after putting in new ones). just my two cents.

thanks guys!