Question: How Do You Know Which Coilpack Is Fried?

[Andi]

Hey all,

Some of you may know that I've lately purcahsed an R34 GTT. Over the past few days I've noticed a slightly weird and annoying problem. It never happens during driving, only when I start the car up. What happens is when I turn on the car, the Check Engine light comes on and 1-2 seconds later the TCS Off and SLIP lights come on as well. During this I get a rough idle which feels like the car is only running on 5 cylinders, perhaps a spark plug or coil pack problem?

Any how turning off and then on the car a few times doesn't seem to help, it only seems to go away after the car is off for a short period (15-30mins?) and then the car is all normal again: the idle is normal, drives fine and everything.

I've done an ECU diagnostics comes up and the error code 2-1 comes up which I believe is Ignition Circuit?

Can anybody help me out as I drive the car daily and when this does happen and I need to go somewhere I can't afford to wait for the problem to go away.

Thanks in advance guys,

Andy

EDIT: After searching more extensively I have found out that it is indeed the coilpacks that is gone! So how do I go about checking which one is buggered?

Edited May 3, 2006 by OnGsTa

[West]

Mate, did you do a search? isn't this the problem that every R34GTT have? Its their coil pack, it's just too sensiitive and too easy to die.

My mate swap a new factory one and it still do the same thng after a month. Apperantly SPLIT FIRE should fix it for good.

[Andi]

Sorry mate it seems you are right, I didn't search for the right things.

Well the new question would be: How do you suss out which coil is fried/gone?

[dangerous_daveo]

You unplug them with the motor running. When you unplug the one and it makes no difference to the engines running/sound, thats the one that is shagged.

[benm]

You could do what I did (which took about a week) and that is apply araldite to 1 of the coilpacks and leave to dry overnight. Plug it back in and take the car for a drive and see if it feels any better.

If it feels better than you know that coilpack was buggered, if their is no changed then pulled out the 2nd coilpack and araldite that 1 and continue this method until it feels ok.