expert hdi fuel rail presure too high

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stuart - 27 Dec 2006 23:25 GMT

Can anyone help i have a 51 plate expert hdi 2.0 had it on the
diagnostics machine its says fuel rail presure sensor too high i have
pulled the spill of pipe from one of the injectors and fuel is coming
out at high presure telling me it is over fueling does anyone know
what would cause this. This is causeing the vehicle to only rev to
around 2000 rpm i asume the ecu is puting it into safe mode :(

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Chris - 28 Dec 2006 13:39 GMT

> Can anyone help i have a 51 plate expert hdi 2.0 had it on the
> diagnostics machine its says fuel rail presure sensor too high i have
> pulled the spill of pipe from one of the injectors and fuel is coming
> out at high presure telling me it is over fueling does anyone know
> what would cause this. This is causeing the vehicle to only rev to
> around 2000 rpm i asume the ecu is puting it into safe mode :(

if you have a good garage near you they should be able to help you .if
they know what they are doing.or ring watson deisels.on tel
02088793584,they are very helpfull.

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peterL - 29 Dec 2006 18:25 GMT

As far as i know:

Fuel pressure is regulated by a control valve which is operated by the
ECU using info from the pressure sensor. The control valve is an
integrated part of the fuel pump and cannot be separated.

The valve is electromagentically operated by the ECU so maybe a faulty
wiring or the pressure sensor is giving wrong readings

> Can anyone help i have a 51 plate expert hdi 2.0 had it on the
> diagnostics machine its says fuel rail presure sensor too high
[quoted text clipped - 3 lines]
> causeing the vehicle to only rev to around 2000 rpm i asume
> the ecu is puting it into safe mode :(

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