Hello chaps. This is my first ever post and I need some help with my 2005 Audi a6 3.0tdi Quattro.

It's has an intermittent engine management fault. The code is p0046 which is a turbo boost control solenoid A circuit fault. The car has no performance issues commonly found with a turbo actuator issues, it runs and performs perfectly fine under all loads and conditions regardless of the engine light. I've disconnected the turbo actuator and checked the turbo vaines are free. The actuator also seems to function. I'm thinking it could be the boost pressure sensor sending spurious readings but i would like to know if anyone has experienced this and can advise before I take the front end apart to reach the sensor.

Thanks very much in advance

Warren

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