I have an A4 1.8T 02, with an APR stage 2 chip, bigger injectors and a custom front mount,

On stage 2 of my chip it runs at 20pounds boost, however

My problem, yesterday I was driving in the morning and I notice when I put my foot down I was only getting about 15pounds, then as the day went I dropped to 10pounds then by the evening it was running at 7pounds

I have checked all the intercooler hoses and pipes fir holes and cracks, also all the lines to the turbo, I have reset the chip manus times!!!!

But still can't find my problem

Some one please help me with this
Any advice is good advice!

Thanks in advance concealeddesign

 

Have you checked all of the vacuum lines? Check valves? 3 way breather under the intake manifold?

 

You could have destroyed your diverter valve if it is stock. They weren't made to handle 20PSI of boost.