Moose Posted March 14, 2015 Share Posted March 14, 2015 I'm sorry if this has been answered (most definitely has) but I don't think I'm reading summink right. My 2009 A8 when I turn the ignition on, the Fi light blinks 2 long and 4 short, can anyone please help to decode this? Link to comment Share on other sites More sharing options...
Member Contributer dawson Posted March 14, 2015 Member Contributer Share Posted March 14, 2015 The longs each count as ten, so you've got a code of 24. According to the manual, 24 is the heater of the #2 02 sensor, which is the outside/rearward one with the black connector. 23 is the fault code for the other sensor's heater if you like to swap things for troubleshooting. Link to comment Share on other sites More sharing options...
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