How To Test Coil Packs?

[robwantsR32]

i've got an r32 gtst started to miss fire last night 90% sure its a coil pack.

i was just wondering is there any way to test coil packs with a multi-meter or something?

other than trial and error?

any help would be greatly appreciated

cheers rob

[GTAAAH]

take em out, grab a multimeter, they got - and + terminals on em, put your multimeter on 20 ohms (or the 1 with 20 on it duno if its ohms or like milli-ohms) and test. Good packs should have 1.6-1.9 i hear, mine ranged from 1.3-1.8. Suggestion is to test em while warm to. Also take off the boots at the bottom and look for plastic cracking or wrecked terminal

Edited July 4, 2006 by r32 gts-turbo

[BezerkR32]

Ignitors are a common failure on 32 rb20 also. gives you same symptoms.

take em out, grab a multimeter, they got - and + terminals on em, put your multimeter on 20 ohms (or the 1 with 20 on it duno if its ohms or like milli-ohms) and test. Good packs should have 1.6-1.9 i hear, mine ranged from 1.3-1.8. Suggestion is to test em while warm to. Also take off the boots at the bottom and look for plastic cracking or wrecked terminal

[GTAAAH]

bezerk, u know how to test ignitor/s? I have absurdly crappy acceleration and im trying everything to fix it before i start spending money. Also where are they?

Edited July 6, 2006 by r32 gts-turbo

[Grant]

When your cars misfiring, leave it idleing and remove and the replace the leads to each coil pack 1 by 1, until you find the one that makes no difference to your cars idle when its unplugged.

[Muffa180]

That will only work when the car is missing at idle. Coil packs generally fail under load to start with.

Edited August 24, 2006 by Muffa180