I tried setting my diverter valve to blow off into atmosphere for the sound of course. Car ran like **** and at idle it wanted to stall. put everything back to stock and now I can't get
more than 4lb of boost. So I'm thinking the car is in limp mode. No check engine lights on. wondering if anyone has any ideas. I tried searching but everything I found had a check engine light on.
thanks in advance.

 

get your car scanned for codes. its the FIRST thing you should ALWAYS do.

 

You need to reset your ECU. I'm pretty sure, but not positive, that if you disconnect the battery and then reconnect it you should be out of limp mode.

 

Thanks guy, I will check for codes tomorrow and then try disconnecting the battery