Hi everyone,

I recently bought a 08 plate Focus 1.6 TDCi from a friend of mine. It was leaking on the injectors and I've fixed it. Interestingly, after I did so, the car seems to be sluggish. I remember when I drove it home first time, the turbo was whining quite loudly (I knew that's gonna be my next job) but the car was pulling well. Once I fixed the injectors and cleaned the engine, I couldn't hear the turbo as I used to do, and I noticed the power loss. I also noticed that the actuator isn't moving at all. I decided to replace the turbo cartridge (only £62). Using this opportunity I cleaned and polished the variable geometry vanes, so everything is moving smoothly. After I refitted the turbo, there was still no movement of the actuator. I checked the actuator itself, it is holding the vacuum and is moving smoothly. I removed the boost valve and checked the power supply with the multimeter. It seems to show 8.3V, then goes up to 10.3V within 10s and then stays at that level even when accelerated. then it dies roughly within 15s after the engine is stopped. At this point I noticed, that I am unable to rev the engine over 3000rpm, it is cutting off. I had no faults on the basic scanner, haven't had a chance to perform a scan with FORScan yet. The boost valve keeps the vacuum, I will check whether it works at all later on, but I could imagine that the voltage should be variable to make it work actually and it's not happening currently, it's stable at 10.3V across the revs.
Any suggestions at this stage guys? I would appreciate your help.
One more thing - I spoke with the previous car owner (and I trust him, as we work together and know each other for 15+ years). He said that the vehicle used to be quite nippy and never experienced any power loss. This really confirms my words, that I had it running well on the way back home when purchased the vehicle. I guess this might be related then to the work I've done so far... I checked the vacuum pipes and all the plugs, everything seems to be OK. I also disconnected the air filter pipe for a minute to see the turbo spinning, so there shouldn't be any restrictions in the intake system (new air filter fitted anyway).
Anybody knows, what reading should I have on the power supply to the solenoid?
I'll appreciate your help!