Hi Guys,

First i need to apologise for what is probably a very silly question

I have a UK Turbo 2000 Plate which has developed a very strange squealing noise when the car comes on boost. I have DEFI gauges in the dash and now notice that the boost gauge is behaving strange as well.

The car has a Bob Rawle map and has been running beautifully for the last year, Bob was kind enough to set all my gauges up with warnings etc and when i press the 'Peak' button the boost gauge goes around to 1.4 bar.

This is what i believe the car is mapped to, however now when the car hits 1.0 bar of boost i have the noise mentioned above plus the RED warning light comes on

I have no idea what all this means, anyone able to give me a clue?

Regards

Glen