on February 20, 2013, 1:43 pm, in reply to "Re: Audi A3 2.0 FSI 2003 - Code 17439 intake manifold tuning valve #"
MED 9.5.1.00
Vac supply good, no leaks in vac circuit.
2 point control to my knowledge.
1 x Code logged:
17439 (P1031) Activation intake manifold flap for air stream regulation
SPECIFIED VALUE NOT REACHED
Ongoing, handed it back to the garage who dropped it with us today for further testing - suspect mechanical issue with the flaps.
Message Thread 
Audi A3 2.0 FSI 2003 - Code 17439 intake manifold tuning valve # - Piotr Sokolowski April 6, 2012, 7:42 pm
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