ive got a problem with my wasted spark cossi

its not firing on cylinder 1 and 4 ,

ive swapped the amps over so there fine.

if i disconnect a certain one the car keeps running on 3 and 2,

ive checked plugs leads and injectors, they all seem fine.

any suggestions??


cheers

 

coilpack ?

 

there seems to be a spark when i take them out ?

 

I would say it's either a coil pack gone faulty or you're not getting the switched earth from the ECU to one side of the coil pack.

Check this by disconnecting the plug and using an LED type circuit tester, put the clip end of the tester to the positive on the battery and the probe to either the outer terminals of the plug. You should have the LED flashing. If there's no flash on one of them, you either have a ECU or wiring issue.

If they're flashing as they should, I would say it's a coil issue.

 

If you have a spark present, is there fuel getting to the cylinders?

I'm not 100% sure but aren't the injectors batch fired? If so, 1&4 will fire at the same time. Could possibly be a phase sensor issue perhaps?

 

cheers i look now

are 901c plugs ok?

 

it seems to be fucking the plugs on those 2 cylinders after a couple of minutes of running????

 

Fucking the plugs up as in covered in fuel or soot?

 

Soot i think, looks like its the lambda , ive another set of plugs and there still like new with it disconected

cheers

 

Hmm........... Weird. I would have thought if it's a lambda issue it would be doing it on 2&3 as well.

 

wat make of coil is it and wats the part number?

 

No idea its the msd kit one,

they all were fooked just more noticeable on 1 and 4 , defo seems to be that as its ran fine all day with it disconected

 

I'd bell MSD ben and see what stu says,did you buy it from them as part of the kit ?

 

ive pmd stu, i think i need a new sensor , i got the chip changed to closed loop when i had the drive board fitted, at its still the original

 

99% certain its the ignition amp Ben. Had same problem and changed everything only to find it was ign amp.

I'm guessing its sparks all 4 on cranking, but drops to 2 when running ? ?

 

I'd e-mail him to be sure aswell ben.

 

Yes rich , but only after a couple of mins running?

 

if i leave it idling , you can here the cylinders drop off as the plugs fuck up

 

Yeah thats what mine was doing

2 new amps fitted and its spot on now

From Stu's email:
Hi Rich,
The only items that are cylinder specific are the amplifiers, sub loom and ECU.

Best Regards,
Stewart Sanderson

I'd swapped ECU and fully line checked the loom, so amps were only other possibility

 

ben m8 thought you gt this cossie fixed from somewhere in blackpool m8 is it still not right like m8

 

Does it do it with fresh plugs ? ?

 

Yep its eaten about 3 sets now

it is/was fixed im just ironing out all the lose ends now and this seems to have cropped up

 

Yeah i went through 4 sets