Syntaxerror

I've recently had the infamous CEL and checked the codes. P0017, P2540, and P228C came up., I replaced both camshaft sensors and crankshaft sensor and I was going to replace the fuel pressure sensor when I noticed that the left fuel pump was leaking small amounts of gas constantly while the car was on. Gas was coming out of a small whole where I thought a sensor would be, but there's only 1 set of wires. Also, where exactly is the fuel pressure regulator? Apparently P228C is directly related to that. Any help would be appreciated on how to fix this.


https://imgur.com/a/zyp26

Vladds

There is no regulator. The pressure is controlled via the pumps with feedback from the sensor.

Syntaxerror

Is there supposed to be a fuel pressure sensor on the left fuel pump?
I guess it's missing, but there's only 1 set of electrical lines, not 2. My C63 is a 2011.

chrisridebike8

Fuel pressure sensor is on the fuel rail, driver's side front part of the intake mani. It's the plug on the silver fuel rail.