Citroen C5 Engine Problems 2.2 Hdi

[Guest hannahgleeson]

hello i own a 2002 c5 estate with a 2.2 HDI, it has a code of p0235 "turbo pressure signal"

 

i have changed the following

2 turbos

intercooler

3 EGR valves

boost pressure sensors

fuel pressure signal,

checked all pipes including vaccum pipes,

cleaned the partificate filter,

the complete engine

and had the wire loam and the ecu tested, but it still keeps coming up with this code,

the vaccum valves for the turbo and EGR valves get soo hot that you cant turch it, i have replaced these too but still the same thing keeps happening, could somone please help me as i am loseing the plot to live, lol i spent £2000 since december and still not getting anywhere, please note that i am a mechanic and have booked the car into almost every garage in plymouth but people cant find the problem,

 

[paul.h]

Welcome to the forum. I can not help but if you copy the post to the C5 pages then it is more likely to be seen by other C5 owners who may be able to help.