Just replaced my HPFP because of a starting and idling issue. After replacing the pump under the hood, I'm still getting starting issues and a bit of idling. Now the car starts whenever the hell it feels like. I plugged in my code reader and got only one code: A0C1 CAS, Output Terminal 50, and 50 RS. I'm fresh out of ideas here. MCS R56 N14

 

check the wiring diagrams to see where the lines go to. newtis.info

make sure your fuse box did get water or moisture through the sunroof.