Opps slight mistake in that the fuel pressure is 50PSI during cranking so 3.447 bar!!!

Just replying to my own thread to say that the P0190 code was due to an earth fault on both the High and Low pressure sensors. After feeding my own earth to both sensors the engine mangement light went straight out. Although the car still does not start. HP fuel is just 50 bar during cranking...

Hi. Yes it's running. I'm getting a very odd wooshing noise from the HP fuel pump area for quite a while when turning the ignition on. Is it possible that the HP pump has failed and the P0190 code is registered as the fuel pressure is so low?? Thanks

Hi All I've checked the harness on the pressure sensor (end of rail) and traced it back to the ECU, without finding fault. Does anyone have a wiring diagram that includes the fuel pump actuator. I'm wondering if a duff HP pump could cause the symptoms of non start and put the ML on during...

Thanks for replying. Do you happen to have a circuit diagram for the fuel pressure sensors. I'm struggling to see what the values should be. Would a regulator wiring fault give a similar problem. I've changed the sensor and regulator without any difference.

Hi All I've just recently purchased a 2003 TD4 and am having a total nightmare getting it to run. The code on my scanner is P0190 pressure sensor circuit failure. I did a check of the wiring to the sensor on the end of the rail and it seems to be ok but the scanner shows a HP fuel reading...