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03 A6 2.7t throwing misfire on all 6 cylinders

03 A6 2.7t throwing misfire on all 6 cylinders

 
Old 04-03-2016, 07:02 PM
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Default 03 A6 2.7t throwing misfire on all 6 cylinders

I have a 2006 A6 2.7t that I replaced all of the coils, plugs and the secondary injection air pump. Two weeks later it throws a P0701,704, 300,301,305 code. then3 days later it throws all of the cylinders and the check engine light is flashing and the car is shuddering on the highway. I parked it and trailered it home. Any ideas? I'm thinking about replacing the ignition control module, is there any way of testing what is going on?
Thanks for ya'll's help.
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Old 04-05-2016, 05:07 PM
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Well usually if its missing on all will usually be from a lean condition. Like huge air leak, vacuum leak, low fuel pressure, incorrect MAF readings. If you really are convinced its ignition module, be sure yours has them, I dont remember if it was 03 or 04 when they went to the BEL engine code and did away with the separate modules on the airbox. I have not seen both modules fail at the same time, and when they fail, its just a single cylinder misfire. So its really really doubtful thats gonna help.
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Old 05-31-2016, 08:04 AM
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I think autozoo might be able to test an ignition control module for the apb.


but I agree with above poster abut a lean condition. Get a smoke test done and see if its something you can fix yourself
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