Hi. I have Ford Fiesta Sedan 2011 Diesel TDCI. My issue is with Turbo System. Solemoid connected to Turbo is getting 8V. Is it Normal?
If Not does anyone know how to figure from where the wire is coming, any schemetics of the wire.
I am acutally having this DTC "p132b(85) turbocharger / supercharger boost control "a" performance". I checked the solenoid i have read it needs 12V to work properly and make wastegate actuator work properly. Since its getting 8V i beleive this might be the issue.

Please Help.

 

Just about all components get their operating voltage power from the PCM If no diagram is available, you may need to physically trace the power wire back to the PCM looking for possible poor connection in the line.
You might check another component to verify it is getting the proper voltage. and go from there.

 

Remove the boost solenoid connector you should see 2 pins, test both using voltmeter with engine off key out. Then test both pins again with key in ON or RUN position, one should get battery voltage, NOT both, the other pin is the signal from PCM and that can't be 12V, so test both pins, not just one. And finally start the engine, one should still get 12v, the other still gives you voltage under 12V, maybe 8V you talked about. The one that gave you 8V, rev and see if the voltage changes.