Audi A4 TDi 2.0 (140) 2007 we get a VCDS reading of:
VAG Error Code: 17036
EOBD II Error Code: P0652
Fault Location:
Sensor Reference Voltage 'B' - Circuit Low
The car is in limp mode with the ESP and EML light on.
The MAP sensor reading thinks the car is at like 2000mbar of boost all the time, which, from what ive read is either down to the sensor itself, the actuator (as they're electronically controlled on these) or wiring for either.
Graph below but manifold abslolute pressure is 2300mbar, constantly! Yellow should follow green!!
Any ideas?
