rb20 cylinder help...turns on an off

[240love]

ok so ive had trouble with my #2 since my swap.(not firing) and my dumbass didnt bother checking the spark plugs and well #2 was bad. so i replaced it and it fired so i was hell yeah, but now it only fires while the car warms up then it shuts off and well yea. so any help is appreciated

[OpeLok]

have you done an ohms reading on the coil packs when they are hot? Sounds exactly like a bad coil pack. I used to drive my car about 10mins, and then it would miss really bad. Then I replaced coil pack, all was better. Do an ohms reading when they are hot. When they cool down again they will read ok. Other than that I would rechceck all connections inside the boot of the coilpack, the connectors themselves, and all of the grounds in and around the coilpacks and ignitor chip. There is a ground on the #6 coil pack hold down bolt (12mm headed one) that needs to be connected as well. This particular ground was my problem and the reason I went through coil packs all the time. Took me 6months to find it.. grr......

[S13 240SX]

I don't mean to to butt in this thread.. But i been having the same problem for 2 months now.

What else can be the problem besides coils and the wiring?

[240love]

have you done an ohms reading on the coil packs when they are hot? Sounds exactly like a bad coil pack. I used to drive my car about 10mins, and then it would miss really bad. Then I replaced coil pack, all was better. Do an ohms reading when they are hot. When they cool down again they will read ok. Other than that I would rechceck all connections inside the boot of the coilpack, the connectors themselves, and all of the grounds in and around the coilpacks and ignitor chip. There is a ground on the #6 coil pack hold down bolt (12mm headed one) that needs to be connected as well. This particular ground was my problem and the reason I went through coil packs all the time. Took me 6months to find it.. grr......

how many grounds is there to it..i have two is that right?...where do you ground them to? i have them to the firewall but they barely reach

[S13 240SX]

how many grounds is there to it..i have two is that right?...where do you ground them to? i have them to the firewall but they barely reach

those 2 grounds.. 1 grounds to a 12mm bolt under the cover. ground it to one of the bolts that bolts that hold the coil brackets down they are 12mm's

and the smaller ground i beleve they ground onto the ingitor with the smaller 8mm bolt one of those bolts there should be a small metal bracket on the ingitor and you slide the metal bracket over and stick the bolt though it and bolt it down.