Coilpack Trigger

[nicr4wks]

Hi Guys,

Does anyone know what triggers the coilpacks to fire off?

I'd assume it's 12v to the + and -, then theres the 3rd pin which I'm guessing is trigger.

Will applying 12v to this 3rd pin cause them to fire?

Cheers.

[Bozz]

What coil packs out of what model and series car? Triggering them is different based on the packs

If they dont have internal ignitors, 12v on one, Gnd on the other and the trigger pin needs to be pulled to ground for about 3 milliseconds (dwell time) to charge the coil pack. Once you remove the earth, it'll let out a spark. Don't leave the earth on too long or you'll fry the coil pack

[nicr4wks]

RB25DET S2, so they have internal igniters, is the procedure for these different to what you've listed above?

Thanks

[Bozz]

Off the top of my head, dunno

Are the coil packs exchangable between R33 S1 and S2? If so, the ignitor has been moved into the ECU and the same procedure will work.

If not and the ignitor is in each coil, you'll need to apply a low current (perhaps 100-200mA, through something like a 47-100 ohm resistor, I don't know the correct amount) to the ignitor pin then remove it. Connecting the trigger pin to 12v will immediately destroy the coil pack if there's a transistor inside it.

[StevenCJR31]

Off the top of my head, dunno

Are the coil packs exchangable between R33 S1 and S2? If so, the ignitor has been moved into the ECU and the same procedure will work.

If not and the ignitor is in each coil, you'll need to apply a low current (perhaps 100-200mA, through something like a 47-100 ohm resistor, I don't know the correct amount) to the ignitor pin then remove it. Connecting the trigger pin to 12v will immediately destroy the coil pack if there's a transistor inside it.

S1 has ignitor on back of the coil cover S2 doesnt (in ECU) coils are diffrent tween the two