A few weeks ago I installed and then programmed an Apexi AVCR but no matter what I did I couldn't get past about 5psi of boost. Discussed my dilemma with IB who after reading the installations instructions discovered that my vacuum line plumbing was reversed at the boost solenoid. Took him less than one minute to do this and it was soooo obviously wrong....DOH! Another minute to swap the vacuum lines and a short test drive later I had enough boost to sh*t myself. Thanks Ian. Cheers PS: We also found and fixed a couple of very big boost leaks. Now to program the thirty other parameters. Red zed is now a missile......yeh :zlove: (Must remember to dial a lower boost prior to my sons taking it for a spin)