APR Stage 1 Complete!

[Banana2]

Have you tried reverting to program 1 (Stock) to see if you notice a difference?

[goodfella]

I'd also let the ECU 'dial' itself in, then I'd definitely be going back to dealer... after all APR should have a satisfaction guarantee of some sort.

[Acko1991]

Personally i would of left the tune until at least 3000KM's to let the engine bed in a little.

[RandomX]

Have you tried reverting to program 1 (Stock) to see if you notice a difference?

just put it back to 95 octane... works fine now...

could be bad fuel, could be not enough air, could be the new engine...

it happened again today.. .the turbo just cuts out... supercharger still spools but no turbo until i turn off and on again...
maybe the tune is demanding too much out of the turbo?

ill call quattro and ask.

cheers,

josh

[Acko1991]

I honestly don't know enough about the GTI engine but i know that on the 77TSI it has a blow off valve.....when the boost becomes to high it diverts the pressure out of the turbo.....You may be showing over boost....To be fair...how are you driving the car? remember its not a racing car.....you have to treat them with a bit of respect. When they say drive it hard to bed it in....They don't mean flog the **** out of it.

[gavs]

Shouldn't be cutting out the turbo regardless of how it's being driven, even with stage 1. The diverter valve does just that, diverts the charged air back into the intake tract. I'd be going straight back to Quattro and getting them to do a thorough diagnosis on it. If the turbo keeps cutting out as you say, it could be software and hopefully it is. If its mechanical and wasn't doing it beforehand....

These turbos are putting out big numbers on track days with stage 2 tunes quite comfortably, I know one guy running water/methanol injection on his and is putting out scary-fast numbers on stock internals, even Guy at APR Australia has said the stock turbo can be good for 250hp so I highly doubt the turbo can't take the tune.

[RandomX]

seems to be settling down a bit now... went to check it out with Brian @ Quattro and he seemed stumped... so does Harding... ive disconnected the darn sound generator... now i can actually hear whats going on with the engine...

i'll keep everyone informed as this progresses as i feel its important to document these little 'quirks'

[RandomX]

just spoke with Guy from Harding Performance (why can't we have a harding branch in WA?) and he suggested it could be the spark plugs... he has suggested using NGK spark plugs from a Audi A1. They are going to try this on a car they have locally which has the same issues and will report back with the results...

If that's all it is then i'm happy...

[Buller_Scott]

well hopefully that's all the problem is.

[gavs]

Spark plugs are a known issue on these cars, many a problematic engine can be traced back to them.