N276 Fault After New Intake Manifold Install

Hello.

I just replaced my intake manifold with a new one from JHM. That was last night. Car was running good; no problems. Drove the car to work, car still running good. Went to lunch, car starts running rough and EPC light is on. I scanned with VagCom and I get a N276 fault code, fuel pressure regulator valve. I have not had a chance to really investigate it further yet.

Anyone encounter this? I was careful in reassembling everything and I double checked all the connections. I don’t think any trash could have gotten into the system as I covered all the connections prevent this. Any suggestions on how to diagnose this or fix this are greatly appreciated.

Just in case, I ordered new high and low fuel pressure regulators. Going to check fuses this evening.