R32 Won't Run

[Klr-bee]

Hi guys this is my first post as I'm relatively new to the skyline scene coming from the dark side (Toyota) :-) I've bought an r32 gtst type m recently and have replaced the ignitor crank angle sensor and spark plugs however when it starts it will just stall if u don't keep your foot on the accelerator and it sounds like it's running on less than 6 cylinders. When driving it will miss all the way through the rev range however it still boosts but only 5 psi. Also the old plugs in there were covered in fuel. Could it be an overfuelling issue? Also I discovered it had an auto ecu and the car is a manual. Any suggestions guys?

[StealthX]

hmm sounds like a bit of a lemon mate...

:|

Was it running fine before your service?

If so, check and re-check everything you've done to it since, then once you're finished, check it all again.

Sounds like a cylinder isn't firing, try being in the engine bay, hold the revs up with the throttle (maybe jam a screw driver in it so you have two hands, then systematically unclip the coilpacks and see which one doesn't effect the engine, when you find this, that's the cylinder that isn't firing, then go from there.

[Klr-bee]

Hmm I will give it a crack it wasn't running at all before coz the ignitor was stuffed so I changed that and the cas just for the sake of it and the problem was there so I changed the plugs hoping it would make it better but nothing. Could the ecu affect it?

[Psymon]

There's a few things you can check here. Check the AFM, easiest way is to swap with a known working one if know anyone with the same car.

When you replaced the CAS did you put the new one back in the same position as the old one? (Assuming the old one was in the correct position to start with) This affects the ignition timing.

Misfiring could also be caused by faulty coil packs which is a known problem with these. If it's still running old original coil packs this could be an issue.

[Psymon]

Also using an auto ecu in a manual won't cause a problem. I've been doing it for years. From memory i did earth one wire from the ecu when i did the manual conversion. Something to do with base ignition timing maybe? It was more than 4 years ago so i can't really remember

[Curmi]

yeah as above re place afm, coil packs, check all the plugs if they are connected.

if these dont work do a compression test on all the cylinders

[Psymon]

Another things that just came to mind... the coil pack looms get pretty shitty on those as they get old... make sure that each coil pack is connected properly.

[mad082]

could be an injector problem as well