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R32 Gtr Stuttering At 2K Revs+

-Tom

By -Tom,
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-Tom Community Regular

-Tom

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Hi all,

So it seems my R32 GTR has presented me with another problem. Not sure if it's electrical or an easy fix.

Anyway, this only started happening tonight after I gave it a bit in 2nd gear.

So what happens now is that in any gear, the engine starts to stutter and will be give me momentary surges in power from 2k rpm up till 3k rpm. It's difficult to make the engine go over 3k rpm.

There is quite a bit of jerkiness that comes with the stuttering and when I pulled over to let it idle the revs were hunting between 200rpm up to 1.5k rpm.

I had my headlights turned off which solved the problem for a little while, but it's returned after I've just test driven it (headlights off again) to see if the problem would occur again.

The car is basically undrivable when it's stuttering. Any ideas?

No real mods. Stock everything.

Edited by -Tom
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https://www.sau.com.au/forums/topic/438046-r32-gtr-stuttering-at-2k-revs/
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-Tom Community Regular

-Tom

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So ripped open the AFMs. 1st one looked great. 2nd one, not sure if it was a bit broken or not.

Have a look and let me know:

8DZYmuG.jpg

H2ENneS.jpg

The 2nd from left prong was a little folded back, so I pushed it back into it's place. I want to silicon seal it back up after I resolder all the connections before I put it back in to test the car.

Is this what a dodgy AFM connection looks like though?

-Tom Community Regular

-Tom

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Sounds like the AFM may have dry solder joints on the plug connection inside, or a blown cooler pipe perhaps.

Do the AFM solder fix.

Fixed it all up and problem didn't appear on 2 separate test drives. Seems to have worked!

Thanks boys.

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