Turbo not spooling up, and no vacuum.

[cooperpug406]

Hi all,

I have a Peugeot 406 HDi 110, 2000.

Been running fine until yesterday, no power when pulling off from an island,
anyway car still got up to speed just took a little longer, although it held 70mph no problem on the motorway.
When we pulled up back home i popped the bonnet and noticed there is no pressure in the turbo/intercooler pipes. (No pipes are expanding)
We put a obd2 meter on the the car, and no faults popped up, after i took it for a spin the engine management light popped on. Got the reader back on and fault code P0243, Faulty wastegate solenoid a. So swapped the solenoid/electro valve with one of the other two, and no change.
Any one able to offer any advice, or anything i can try to get it fixed, got hols in a week, and cant drive it 200+ miles as it is.

[madmadmax]

the wastegate solenoid is diffrent from the other two as the wastegate solenoid is pulse with modulated instead of open or closed like the egr one

[cooperpug406]

Is there a way to tell the difference between the solenoids?

[cooperpug406]

Is there any chance the EGR could be causing any problems with the turbo, im new to the turbo scene and still learning about how the tick.

[cooperpug406]

Ok its sorted,

Turns out the vacuum hose under the Brake servo had a major split, couldn't here the air release because it was on the joint. Luckily I had some spare hose left from a project, fitted it and my Turbo came alive
Gave it a rev and had a massive a mount of black smoke, but after a good run its cleared and running sweet as a nut, just a service left to do now.

[dave406]

any chance you could advice were this pipe is that split? i got the same issue