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P1090 Diagnostic Trouble Code Discussion for May 2013

Tumble Generator Valve System 1 (Valve Open)

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Trouble Ticket Help Requests for DTC P1090
Help Request Posted
2007 Porsche 911 Turbo 3.6L Poor Idle Quality, Surge VIN: WP0AD29937
P1090: manufacturer specific. ... that is not at regular intervals but seems to get worse as engine warms up. Original code pulled with Durametric(I know its not a good scanner but its what the shop owner bought us) was a 1010 HFM electrical fault. This engine has 2 AFM's , one for each ba...
May 01, 2013