P0235, Please Help,,,, Citroen C5 2.2Hdi

[Guest hannahgleeson]

hi all, i need some help with my 2002 C5 2.2HDI,

no matter what i do i just cant get the engine light to turn off, it keeps coming up with this "p0235 Turbocharger Boost Sensor A Circuit Malfunction" i have replaced everything and it still says this, can anyone advise me on what sort of power it is? etc? thank you, hannah,

[paul.h]

Sorry, still can not help but if you post this in the C5 pages (from home page, go down to current cars, C5 pages) there are some experts there. There is a lot of spam being posted on the forum and it is easy for your post to be lost and not noticed otherwise.

I did do a search on the C5 pages and this fault code only seems to be mentioned once a few years ago and a solution then was not found or the poster did not come back. Also a google search seems to have covered most of the things you have changed on other makes of car.

[Motomech]

You may have a problem with one of the vacuum pipes which go to the relay valves, I had this problem and it turned out to be a broken connection on a vacuum chamber located behind the brake servo, I removed the chamber and sealed the broken connection then used one of the spare connections which had been plugged off, problem now gone. hope this helps you sort it out,

[Guest s_virus]

Is yr vehicle loosing coolant very slow and with no leaks??

[coastline taxis]

split or broken vacum pipe or solenoid  or the expensive bit is a split diaphram in the turbo. Thats assuming youve checked all the wiring.

What scanner are you using for your codes does it have live data

[Guest s_virus]

Leak in water-cooled EGR valve.