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Need your collective wisdom with this. I have an '06 A6 which, just recetly, begins to stall when I go into hard braking. The tach drops to about 200 rpm and then comes back up. I have a cam and performance tune both done a few years ago without any problems. Any help would be appreciated. About 54,000 miles on the odo.
Modified engine immediately brings to mind a transmission pcm tuning issue. There are SOOOOOOOO many tables to adjust when you start amping up the power and changing shift points and line pressures. Post your issue in the scan and tune section and see if you can get a tuner savvy person to chime in on the issue.