MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: jord_leon on September 19, 2016, 04:31:58 pm

Title: Boosting Problems???
Post by: jord_leon on September 19, 2016, 04:31:58 pm

Hello all! I have a MK5 GTI DSG with K04 conversion. The Vehicle has a apr Map which Produced 345bhp. When i go to put full power down the sometimes it will peak at just under 2bar and stay there but then other times when i go to put my foot down it will only boost to about 1.3bar ? Will this be due to the DSG torque limiter kicking in as the gearbox is not map, or will it be a boost leak ?

Cheers

Title: Re: Boosting Problems???
Post by: pudding on September 20, 2016, 11:41:54 am

First thing I would do is check the requested vs actual boost pressure with VCDS.  If the actual falls way below requested, that's usually a leak.  Split DV or O rings in the bayonet boost pipes.

If all looks OK there, could be worth trying a DSG remap.  I'd get that done anyway tbh!  Nobody wants auto upshifting on corners when using the paddles.

Title: Re: Boosting Problems???
Post by: Dan_FR on September 20, 2016, 01:03:49 pm

Boost is not a static number. It will vary hugely depending on gear, rpm and load. Get it logged and send them to APR if you think there is an issue