A3 2.0 tdi engine fires then cuts out immediately

audibeb

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Hi, problem just started happening. When I start the car the engine fires up but then cuts out immediately. It will do this a few times then it will start and run as normal and when being driven everything is fine. This doesn't happen all the time though, on occasions it starts first time. Also, but not every time, when it takes a few attempts to get the engine going the engine management light comes on and I get code P2108 (Throttle actuator control module performance). Fitted a new throttle body just before christmas. Any ideas please.
 
I'd be checking all the connections and plugs at the TB itself and potentially at the pedal end. Especially since you swapped the unit recently. Why did you have to change it? Kind of obvious really if you touch or change something and it starts acting up, look there first and be thorough. Check that the pins haven't sunk back in any connectors and nothing is loose, broken or chafed.
 
Did you do a throttle body alignment after you fitted the new one?
 

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