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engine stutter with Active Handling turned off

Old Feb 7, 2011 | 05:57 PM
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GeneT
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Default engine stutter with Active Handling turned off

I was autocrossing Saturday, and I turned the AH OFF. I ran 3 runs, using 2nd gear in my A4. I came to the line for My 4th run, and when I "power braked" for the launch, the engine went into a regular stutter, like UHH, UHH, UHH, UHH, UHH. I put it in Neutral and the engine reved normally, but when I put it in L or 2 it would UHH, UHH. I turned AH ON and then went into Competition and everything was OK, so I made 5 more runs in Comp. BTW, AH OFF didn't produce the UHH, UHH any more after that. No codes.
Question : What caused the reduced power with my AH OFF ???
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Old Feb 10, 2011 | 07:09 PM
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Old Feb 11, 2011 | 09:13 AM
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Your "power braking" may have caused the engine controller to start removing timing.
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