Coil Packs Breaking Down Question

[R33ram]

Hey guys,

Have this problem with my R33 gtst series 1 where i give the car full throttle in first gear as tested in that gear most of the time and as i push the clutch and as the revs drop the car starts to sound like a WRX or like 5 cylinders for only like a few seconds but some times maybe 10 seconds and then goes back to normal and no problem.

Car does miss a lil here and there but plugs have been gapped to .75 and doesnt cut out at all at high rpm or between gear shifts like it used to before but always sounds like wrx and goes to normal again within 10 seconds after giving it full throttle.

I thought maybe its the coil pack or one breaking down at high rpm and then goes back to normal but gives me no time to check it as it runs back to normal after sounding like that.

Dont have any spare coil pack or stock ones to test it so dont wanna go buy splitfire ones as not sure on the problem.

Car has yellow jackets on it but are second hand ones.

Anyone have any idea maybe on what it could be

[DVS JEZ]

Could be a few things, can u borrow some coilpacks from a mates car so u can test.

Also do u have an atmo bov? This can also cause similar symptoms

[R33ram]

Ive only got series 2 coilpacks as spares from my brothers car but they wont work of the ingniter built in to them or can they or get them to work?

I do have aftermarket b.o.v but plumb back not atmo.problem just started happening recently and havent touched anything...

doesnt sound like a fuel problem.

to be exact on the sound it does its like taking out the plug from one of the coil packs for 5 seconds but then pluging it back in and back to normal but only at high rpm and wen coming down rpm or its good again like it fixes up.