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R32 Gtr Not Running Properly

icydude

By icydude,
in General Maintenance

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icydude Community Regular

icydude

Posted
Posted

Im hoping someone here will be able to help me out.

I was taking a jaunt down a highway pushing it hard in 4th and when i let off the gas the car beganto slow down more than it should normally. I pushed the gas pedal and it just sputtured and slowly reved down.

I pulled over on the side of the road and it then stalled. I repeatedly tried to start it but it would not hold an idle from that point on. If i floored it it would stall, if i touched the throttle a few times lightly it would rev up but missed alot.

I played around with the apexi power fc settings a bit to get it home but it barely made it and sputtered all the way back 7 km.

I got home and cleaned the MAF's out with cleaner and then putthem back in, I took a quick drive around the block and it would rev up and boost fine. I parked it for an hour then went to go back to the plans i had before it did all of this. I made it down the road about 3 km and it began doing it again. I took it back and cleaned the mafs out once more. It didnt help this time.

Now i have the car in my garage. I have checked the spark plugs and they are fine, coil packs look good on visual inspection.

Anybody know what it could be? I have been able to get it to rev and drive but it does not like hitting boost or beign under load.

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https://www.sau.com.au/forums/topic/85153-r32-gtr-not-running-properly/
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blind_elk Grand Master

blind_elk

Posted
Posted

OK. If you have a boost leak, then you have a boost leak - the car will run like crap permanently, it doesn't start and stop behaving erratically.

It might be the ignitor module for the coils - they tend to become susceptible to heat, and often recover after a you have stopped for a while trying to figure out what the problem could be (they manage to cool off and work OK again).

It could also be a bit of oil blowby - check the insides of the plumbing between the AFMs and the turbos. If they are coated in oil, then that is a potential source of the problem (hence the fact that cleaning the AFMs seems to at least partially fix the problem).

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