Did a lot of upgrading recently, Jacob`s wires, Jacob`s ignition, M2 ball bearing high flow turbos, M2 ECU, M2 large intercooler, fuel pump upgrade and so forth and everything was running great. Then late last week I started noticing that the engine was missing if I was just cruising along off the throttle. Doesn`t seem to miss much if at all under acceleration. Changed the plugs, no difference. OK, now what? Injectors maybe?

 

Coils? Hello, anybody out there?

 

yo capt.
i wasnt going to reply to this because of a fight you started w/ me in the past...but that was the past. i experienced a similar problem. mazda made another coil wiring harness w/out the ground. it was abot $40 from pettit. it is a stock mazda part i knew about, but ofcourse mazduh had no clue what i was refering to, so i bought it from pettit. the "old" style one was arcingon me causing it to miss. it is a cheap diagnostic if you want to try. doesnt take long to rplace...about 45 min. just need to remove the plenum. pm me for a full explination of the problem. its late i dont feel like typing right now. good luck