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Rb20det Erratic Performance


cainer33
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Hi all, just troubleshooting, I thought it was just in my head, but its been confirmed by someone else who is borrowing my toy.

Sometimes the car runs perfect, smooth, puts the power out as it should etc

Other times its erratic, it feels like boost isn't coming on at all, then it does even though the gauge is reading what it should.

I suspect a dodgy AFM "may" be causing the problem.

Or could it be that the ECU is sensing a knock and retarding the timing to save the engine ?

Its a pretty standard R32, just has FMIC and cat back.

anyone have any ideas or similar experiences ?

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