Could any of the following be responsible for the problems i'm having?

- Thrust sensor / MAP Sensor
- PCV valve
- Actuator
- N249 Diverter valve control solenoid

I've already checked or replaced N75J, Dump Valve, Mass Airflow/Air Mass Sensor and Coolant temp sensor.

I've also had a garage have a "quick" look over it at the weekend and they couldn't find any obvious air leaks.

I'm running out of options now! And money! lol.

Your help as always is greatly appreciated.

Cheers

Twign