Oh no! I hope this aint what I think it is....

[SoVeReIgN]

Be pretty hard to prove though.. Goodluck

[Cache]

This sounds alot like what was happening with my car. You dont have a ****ty little bleed valve boost controller do you? I discovered mine when I first removed the engine cover to install my BOV, what a nasty suprise that was. Way to much overboosting causing limp mode. It still kept the code after restarting the car as well, so a full reset was needed. Let us know how you go.