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Author Topic: Stuttering under heavy acceleration at about 4k rpm  (Read 152 times)

Offline Ytee

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Stuttering under heavy acceleration at about 4k rpm
« on: Yesterday at 03:07:33 pm »
Hi all.

I'm betting someone's had this before and knows exactly what this is. I'm getting stuttering issues in my Mk5 under heavy acceleration when I hit around 4k rpm. It almost feels like a rev limiter kicking in, although of course it isn't that. Eventually it pulls through and continues on normally up to the red line. It's a bit sporadic, doesn't always happen, but it is fairly easy to recreate by accelerating with the pedal flat from about 2k rpm in 3rd, for example.

There's no EML, and VCDS brings up no fault codes either. I've recently changed the air filter just in case it was that, but no.

The car is standard except for a simple Bluefin remap, but that hasn't caused me any issues in the 5 years I've had it.

I fear it's the turbo, but, before I start sending it in for expensive diagnostics, I thought I'd ask here :)

Stage 1 '07 Mk5 GTI

Offline GVK

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Re: Stuttering under heavy acceleration at about 4k rpm
« Reply #1 on: Yesterday at 10:35:02 pm »
Crank sensor losing signal.

Online mjmallia

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Re: Stuttering under heavy acceleration at about 4k rpm
« Reply #2 on: Today at 09:17:21 am »
Check a few of the obvious ones like fuel filter, spark plug condition, when was the last time you did a carbon and injector clean on the intake, boost leaks  and so on.
Mike

South Coast

S3 8L ---- Golf Mk4 GT TDI ---- Lupo GTI ----  A4 B6 Sline ---- Golf Mk5 GTI