Ignition System Worn Out?

[FinkenS14]

Hey guys when I first got my engine, it had Denso Iridiums gapped at .043. I got the car all running right, but it still had a horrible miss.

So me and my friends took the plugs out, regapped them to .030 and the car ran great and smooth.

This lasted about 4 months and then the car started missing again at the top of the gears.

So I went out and bought some NGK BCPR7ES's and gapped them at the stock .043 thinking the old plugs were bad.

It still had the miss at the top of the gears, except this time it was horrible.

So I regapped them to the .030 that had worked, and it still missed.

Still had the miss

Went back to the house, gapped them at a tiny .025, and the car runs like a top now, just burns a good amount of fuel when in boost.

Does it sound like my coils or ignitor are going out on me?

Thanks!

[Cjmartz2k]

coil(s) on the way out

[FinkenS14]

How much longer you think they'll last me?

Also my friend went MSD ignition on his R33 RB26, with his coils work on my car?

[Cjmartz2k]

LOL, there is no way to answer that. Sounds like they already aren't lasting you. Research how to fix them. Plenty of threads on here and on skylinesaustralia.com about fixing coil packs.

[rb25det250sx]

you can do a very cheap temp fix...has worked twice fro me on stock coils. but coat them in epoxy...it will help insulate the coils. and it works but like a said temporary and cheap!