DW Wasted spark RB25DET / PowerFC - Drifting forum

mruk · 16-09-2008, 20:27

Please help, am at the end of my teather and i've booked the car in for mapping on friday after a 8month build

Got a DW wasted spark kit, that afaik was setup correctly so shouldn't be a problem.

Do you have to change any settings on the PowerFC for the different ignition setup like you do with the AFM/Injectors??

My mate is a mechanic and he's been over to check it out and says all is good with way i've done it but he can't make sense of the Ignition setup on the car, i'm not technical but he says a wasted spark kit should Pulse not be constant but he's getting a constant live feed when he tests it

Can't get the car to spark up, so its definately an ignition problem, the igntion amp appears to be okay

PLEEEEZE HELP

mruk · 16-09-2008, 20:38

Just looked back at an old post of mine

How do i wire this up to my car if it was for a Series2 car then ?
my brain is fried from all the work i've done on it the last few days

Quote:

Originally Posted by Bonbon

Hi Ian, to fit the kit to an S2 car it has to be returned to the same setup as an S1 car anyway, so it should just be plug and play on your S1 car. You don't need to worry about getting another ignition amp or anything!

The only difference might be the wiring for 12v, but that's obviously not a problem, just wire the 12v to the appropriate source.

mruk · 17-09-2008, 15:20

please can someone help, i've PMd two people that should know about this, and posted
it up on a few of the owners clubs as well and i'm really starting to get desperate, i don't
want to back out of the spot i've got booked at the tuners on friday as they'll get pissed
off with me for cancelling at the last minute

They've probabyl turned down work to fit me in

There are a couple of loose wires

there is no ground loop , where do i take the ground wires from on a 2 wire plug???

**James** · 17-09-2008, 15:50

Hi Ian,
sorry for the delay, Phil's out today and Bon's in the workshop so we're a little stretched

So....... a few facts/questions so we can get you sorted:

You don't need to change anything in the powerFC to run wasted spark, the act of joining the wires for the cylinder pairs (1&6, 2&5, 3&4) together will do this.

If your mechanic friend has tested for a live 12v+ feed at the coil, he will find one that is on constantly when the ignition is on, that's correct and as it should be. Most coils of this type have a permanent live feed to them, then they fire each coil by switching the earth rather than the 12v+

Are you seeing no sparks at all? and is this the same for all cylinders?

So you have it wired in with an ignition amplifier now? Do you have any pictures that show how you've done it so we can take a look?

Have you got the plug leads going onto the coil using the numbers stamped into the plastic housing? This way is wrong and that's a fairly common mistake.

Have you earthed any black wires? It's common for one of the black wires to also be connected to the cyl 1 trigger wire and this can cause problems with cyl 1&6 as this means the coil is always on rather than pulsing when it's needed.

mruk · 17-09-2008, 15:59

yeah, no spark at all

ther isn't any black wires to earth and i think thats the problem

3 is on 1, 1 is on 3, 5 is on 5, 6 is on 4, 4 is on 6, 2 is on 2

mruk · 17-09-2008, 16:02

i'll post some pics when i get back home soon

mruk · 17-09-2008, 16:03

i've got 3 white wires joined together, they all go to a 2 pin plug and there is another wire that was joined to it that looks like its been cut off,
also there are two more wires coming off the white wire that look like they've been cut off at the same point

mruk · 17-09-2008, 16:04

the pink/black wiring looks like it says it should do on the diagram i've seen on here that everyone seems to use

mruk · 17-09-2008, 16:05

it appears that i'm missing a grounding loop and a power wire according to this?

**James** · 17-09-2008, 16:22

Quote:

Originally Posted by mruk

3 is on 1, 1 is on 3, 5 is on 5, 6 is on 4, 4 is on 6, 2 is on 2

That doesn't sound quite right to me.....
Hopefully this picture helps:
Think of the coilpack as 3 seperate coils joined together. I've coloured each one in a different colour to illustrate the 3 distinct parts. It doesn't really matter exactly which cylinders are joined to which sections of the coil, as long as each pair 1&6, 2&5, 3&4 is on the same coloured (in my diagram) section of the coil and your pink wires into the ignitor pack go to the corresponding coil section

mruk · 17-09-2008, 16:29

taking it all apart and restarting isn't a problem, i'll do that if its wrong, its just working out where there wires go as i've only got a 2 pin plug ... that diagram of the 3 pin plug is just confusing the matter further.
...is there a diagram of the setup with a 2 pin plug? i think that should sort it out in my head where it should be

mruk · 17-09-2008, 22:16

AHHHHHHHHHHHHHHHHHH

surely there are tonnes of people that have a wasted spark kit skyline!! Some one help me... need my car to start!

mruk · 17-09-2008, 23:09

PICS OF MINE:

mruk · 17-09-2008, 23:23

i wasn't sure if the ignition amp was meant to be earthed so i did that just in case
__________________

superclarkey · 17-09-2008, 23:25

you may want to rethink your bracket tho mate

i'm guessing thats alloy or steel

mruk · 17-09-2008, 23:37

i don't know that was just on it mate when i bought it
why does it matter? is that an earthing point?

superclarkey · 17-09-2008, 23:46

I'm talking about that metal bracket on the coilpack, it is ground triggered, and you have a bit of metal that is bolted to ground (the chassis), i could see it ending in tears

personaly i would use a plastic to mount it, not metal. or at least rubber sheld it.

clarkey.

mruk · 17-09-2008, 23:49

should i have a wire coming off that then to ground it?

I would've remove that bracket anyway as it won't fit anywhere useful in my engine bay

superclarkey · 18-09-2008, 00:15

the bracket imho shouldn't be there, because its a conductor, and being electronics is not the best idea, personally i would mount it on plastic or something simular.

Thats me tho

mruk · 18-09-2008, 00:26

should there be any other wires coming off this that i'm missing for a series 1??

16-09-2008, 20:27	#1 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	DW Wasted spark RB25DET / PowerFC Please help, am at the end of my teather and i've booked the car in for mapping on friday after a 8month build Got a DW wasted spark kit, that afaik was setup correctly so shouldn't be a problem. Do you have to change any settings on the PowerFC for the different ignition setup like you do with the AFM/Injectors?? My mate is a mechanic and he's been over to check it out and says all is good with way i've done it but he can't make sense of the Ignition setup on the car, i'm not technical but he says a wasted spark kit should Pulse not be constant but he's getting a constant live feed when he tests it Can't get the car to spark up, so its definately an ignition problem, the igntion amp appears to be okay PLEEEEZE HELP

17-09-2008, 15:59	#5 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	yeah, no spark at all ther isn't any black wires to earth and i think thats the problem 3 is on 1, 1 is on 3, 5 is on 5, 6 is on 4, 4 is on 6, 2 is on 2 Last edited by mruk : 17-09-2008 at 16:01.

17-09-2008, 16:05	#9 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	it appears that i'm missing a grounding loop and a power wire according to this? Last edited by mruk : 17-09-2008 at 16:11.

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17-09-2008, 15:20	#3 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	please can someone help, i've PMd two people that should know about this, and posted it up on a few of the owners clubs as well and i'm really starting to get desperate, i don't want to back out of the spot i've got booked at the tuners on friday as they'll get pissed off with me for cancelling at the last minute They've probabyl turned down work to fit me in There are a couple of loose wires there is no ground loop , where do i take the ground wires from on a 2 wire plug???

17-09-2008, 15:50	#4 (permalink)
James Lights out! Join Date: Jul 2004 Location: Birmingham UK Posts: 7,753	Hi Ian, sorry for the delay, Phil's out today and Bon's in the workshop so we're a little stretched So....... a few facts/questions so we can get you sorted: You don't need to change anything in the powerFC to run wasted spark, the act of joining the wires for the cylinder pairs (1&6, 2&5, 3&4) together will do this. If your mechanic friend has tested for a live 12v+ feed at the coil, he will find one that is on constantly when the ignition is on, that's correct and as it should be. Most coils of this type have a permanent live feed to them, then they fire each coil by switching the earth rather than the 12v+ Are you seeing no sparks at all? and is this the same for all cylinders? So you have it wired in with an ignition amplifier now? Do you have any pictures that show how you've done it so we can take a look? Have you got the plug leads going onto the coil using the numbers stamped into the plastic housing? This way is wrong and that's a fairly common mistake. Have you earthed any black wires? It's common for one of the black wires to also be connected to the cyl 1 trigger wire and this can cause problems with cyl 1&6 as this means the coil is always on rather than pulsing when it's needed.

17-09-2008, 16:02	#6 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	i'll post some pics when i get back home soon

17-09-2008, 16:03	#7 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	i've got 3 white wires joined together, they all go to a 2 pin plug and there is another wire that was joined to it that looks like its been cut off, also there are two more wires coming off the white wire that look like they've been cut off at the same point

17-09-2008, 16:04	#8 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	the pink/black wiring looks like it says it should do on the diagram i've seen on here that everyone seems to use

17-09-2008, 16:29	#11 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	taking it all apart and restarting isn't a problem, i'll do that if its wrong, its just working out where there wires go as i've only got a 2 pin plug ... that diagram of the 3 pin plug is just confusing the matter further. ...is there a diagram of the setup with a 2 pin plug? i think that should sort it out in my head where it should be

17-09-2008, 22:16	#12 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	AHHHHHHHHHHHHHHHHHH surely there are tonnes of people that have a wasted spark kit skyline!! Some one help me... need my car to start!

17-09-2008, 23:09	#13 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	PICS OF MINE:

17-09-2008, 23:23	#14 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	i wasn't sure if the ignition amp was meant to be earthed so i did that just in case __________________

17-09-2008, 23:25	#15 (permalink)
superclarkey ______________ Join Date: Aug 2004 Posts: 9,249	you may want to rethink your bracket tho mate i'm guessing thats alloy or steel

17-09-2008, 23:37	#16 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	i don't know that was just on it mate when i bought it why does it matter? is that an earthing point?

17-09-2008, 23:46	#17 (permalink)
superclarkey ______________ Join Date: Aug 2004 Posts: 9,249	I'm talking about that metal bracket on the coilpack, it is ground triggered, and you have a bit of metal that is bolted to ground (the chassis), i could see it ending in tears personaly i would use a plastic to mount it, not metal. or at least rubber sheld it. clarkey.

17-09-2008, 23:49	#18 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	should i have a wire coming off that then to ground it? I would've remove that bracket anyway as it won't fit anywhere useful in my engine bay

18-09-2008, 00:15	#19 (permalink)
superclarkey ______________ Join Date: Aug 2004 Posts: 9,249	the bracket imho shouldn't be there, because its a conductor, and being electronics is not the best idea, personally i would mount it on plastic or something simular. Thats me tho

18-09-2008, 00:26	#20 (permalink)
mruk tail slider Join Date: Jul 2007 Location: Loughborough Posts: 100	should there be any other wires coming off this that i'm missing for a series 1??