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      09-11-2009, 02:26 AM   #15
Eugene-TAIWAN
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Drives: E92 M3 Coupe
Join Date: Jun 2009
Location: Taiwan

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Quote:
Originally Posted by mixja View Post
Try resetting your ECU - disconnect ground from battery in boot of the car, leave it for 30 minutes, then hold down the brake for 60 seconds. Reconnect the battery...

I was experienced reduced power after a day at the track, resetting ECU cured it...

OK I will try that. do hold the brake and connect the battery at the same time?
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