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P0638 Diagnostic Trouble Code Discussion for April 2008

Throttle Actuator Control Range/Performance

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Trouble Ticket Help Requests for DTC P0638
Help Request Posted
2003 Porsche 911 Carrera 3.6L Cuts out VIN: WPOBA29983
P0638: DVE fault position deviation. ... on this 996 with the Motronic 7.8 DME (= same as for the new 997ís), Which is totally different than the earlier 7.2 Motronic! The complain is: When throttle is depressed more the 50 % (measured with PIWIS-tester) the engine cuts and returns to idle (Porsc...
April 15, 2008