Mk4 1.8t AUM intermittent loss of boost *Updated: Fault code 17963*

[AntMk3GTi]

Hi

I've just had my 1.8t AUM remapped to 205 bhp and it feels amazing to drive! I'm very happy with it, although every now and then I'll get a surge of boost as the turbo spools up then higher up in the rev range the power suddenly drops, almost feels like Iv'e taken my foot off the pedal and the turbo goes quiet, then it'll kick back in again.

I was told it's a sticking Actuator. I put a load of WD40 and a bit of grease on the push rod yesterday, and it's only happened once since then. Is there anythign else I can do while it's still attached to the car? Is it possible to replace the actuator from underneath the car with the turbo still in place?

This only happens very occasionally, and it doesnt take long to correct itself, but any help on how to stop it happening completely would be great!

Thanks

[Nino]

Hmmmm mine also does this same engine code too, I was told it could be the n75. But mine loses power top end but it dont come back like yours however my car is not remapped.

[AntMk3GTi]

Thanks for the reply. I was just reading up on the N75 valve. I might try that and see how it is after.

Do you know which one I would need and the best place to buy it? Just after a standard replacement.

Cheers

[Nino]

http://www.ebay.co.uk/itm/181102476475?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

[AntMk3GTi]

Thanks 

[markallen]

Niño mines the same. I've put it down to the ecu only telling it to boost between 3000 and 5500 revs or something like that not sure on exact figures?

[Sonic B0000M]

Mine does this and wasn't sure why. I know I had a split vacuum pipe that got patched up and thought it was that.  But it still does it.

[Nino]

hmmm well i notice my car feels fast low down, then at around 4k rpm onwards seems to die down abit but speed still increases.

[Sonic B0000M]

Think mine is down to a split pipe.

Does anyone know if this will help? I too have 17705

http://pages.ebay.com/link/?nav=item.view&id=330671735043

[Nino]

Think mine is down to a split pipe.

Does anyone know if this will help? I too have 17705

http://pages.ebay.com/link/?nav=item.view&id=330671735043

Dont use them, I highly reconmend you use Creation motor sport, brilliant customer service and thats What I have use.
http://www.creationsmotorsport.com/products-by-category.php?main=6&catID=10