Ive been driving my r53 for over a month now and loving every second. Recently i received a boost gauge for my birthday. When i went to install it, there was no vacuum line between the supercharger and the fuel pressure regulator. No warning lights on, car ran fine other than spme pretty heavy decel pop. I ran a new vacuum line between the 2 and teed in my boost line. Now i have several lights on the dash and the car will barely start and misfires like crazy before stalling. Help!

 

Wut that is crazy. Are you able to do a fault scan? The line should be there.

 

I dont have access to a scanning tool. I disconnected the line and im ganna try reseting the ecu

 

Could you create some pictures of the fuel rail and fuel pressure regulator?