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post #2 of (permalink) Old 14th January 2008
Technical Supremo

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From my experience I have never heard of throttle position sensors fitted to diesels as they are free air breathers - the engine speed is monitored via the ECU and the throttle poteniometer which regulates fule flow to the injectors - by lifting off the throttle you probaly reduced the air intake pressure which would affect the turbo sensor and the solenoid controlling the turbo wastegate
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