C5 2.0hdi 136hp P1461 fault code

[c5biker]

Hello out there,
Does anyone have any idea where I should start looking for faults;
MAF ?
O2 sensor ?

Dunno where to start !

[GiveMeABreak]

I take it this is the 2.0 138 (DW10BTED4), not the 2.2 136?

Fault Code:	P1461
Description of Fault:	Electric EGR valve position copy signal: Difference between the stops programmed at long-term. Slow or rapid drift on initialisation of the EGR bottom stop for 100 ms
Conditions for Fault to clear:	Driving for 5 minutes
Downgrade Modes whilst Fault is active:	Exhaust gas recycling (EGR) cut-off Initialisation the next time the engine ECU goes to sleep
Symptoms:	Engine hesitating, cutting out Smoke from the exhaust Starting problem
Suspect Areas:	Electrical harness Connector Electric exhaust gas recycling valve

[c5biker]

Hiya Marc, thanks for reply. Yes its the same as your C5 II only gold, not black.
Symptoms; starts fine, haven't noticed excessive smoke, all is fine until engine up to temp, then, almost no boost.
Feels like a pre-turbo diesel like an old ZX I used to have.
Still have no idea where to start looking, HEEEEELP !

[GiveMeABreak]

Check the thermostat - is the car gauge showing heating up normally or too fast? If the engine ECU thinks the car is overheating it may stop the turbo boost - especially as you say this is happening when the car is up to temperature.

I'd check ALL your vacuum hoses for leaks and all your turbo hoses too - make sure they aren't kinked or sticking together when hot.

[c5biker]

will do thanks