WJ 2.7 CRD lack of acceleration and power

[giacomo.m]

Originally Posted by Adrian D

I'm keeping my theory, the fuel pressure sensor has incorrect readings due to wiring issues: shows a higher value than real, forcing the fuel pressure regulator (fuel pressure solenoid) to reduce the pressure to match the target.
Your real pressure will actually be lower than the target, which means low power.

Thank you Adrian D
so once the continuity of the 3 cables of fuel pressure sensor cables has been tested, could it be the ecu engine that is broken......?
Giacomo

[Adrian D]

It would be a bit unusual to have a bad sensor.

See if wiring from ECU to sensor is ok.
See if 5v reference value at sensor plug is ok (I think it has a 5v ref)
See if gnd at sensor plug is ok

I imagine the same 5v ref is the same for a few sensors, so if it's ok at the sensor plug, ECU 5v ref circuit is ok.
Then it's either a bad sensor or a bad A/D converter in the ECU, both unusual failures. A different sensor should be easier to find for testing.