Defi turbo gauge not working
 

I have a my05 wrx and have fitted the defi BF guages, they all work except the turbo gauge flickers around the 0.5 mark, when I take my foot slightly off the pedal it marks 1. bar for a split second, I also have VTA Balieys fitted could this be the fault, and is there any way round it?

could be you've picked up the wrong vaccum conection.......................??