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Hi, could anyone please help, I have an 05 plate, A3 2.0 TDi that is showing the engine management symbol on the dash. A pal who is a VW enthusiast and mechanic tested the car on his VAG-COM and two fault codes, P2100 and P2102 were listed. My friends book is somewhat out of date and he suggested I try this site for a possible answer. I would be very grateful if anyone could tell me which areas these codes refer to. Many thanks.
 

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From what i can see, its a intake manifold flap motor thats failed, its a motor that operates it. It might be coked up, or dead. Theres also a fuse that operates it so it would be best to check that first.
 

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P2102 - Throttle Valve Actuator Module (J338) Motor Circuit: Sig Low

P2100 - SAE Throttle Actuator Control Motor Circuit: Open
 
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