I have a Doblo Cargo 2007 1.3JTD with an intermittent fault which makes me think its a faulty sensor. The meter says the turbo has gone over speed. It is okay most of the time but occasionally as I accelerate the turbo is restricted and the EML comes on. After a few trips the light goes out on its own and the cycle goes on.
Is anyone able to tell me where the boost solenoid/sensor is and what else to look for?