I've had a problem with boost for approx 5000 miles but thought i'd leave it until service time as im always using the car. Boost comes in as normal and accelerates hard until about 4000 rpm then seems to drop and hold back. Car is completely standard and before it would build more boost and hold it. Any ideas guys?

 

do you have a guage? what is it reading??

 

Yes but haven't put it in yet because im still looking for a decent pod! I guess im going to have to rig it up to get to the bottom of the problem.