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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Harmful to reset ECU every so often?



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      01-10-2008, 08:55 PM   #1
yahtzee
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Harmful to reset ECU every so often?

Any benefit to unhooking battery for an hour or so, resetting the ECU, reloading the map and starting back at 90% torque settings....I am running Shell 93 (I always run the highest octane but never made a point to get Shell 93 until now - I can see an immediate increase in 2-2.5mpg).
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      01-11-2008, 01:27 AM   #2
rambino
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A quick trick after you unplug the battery, is to just tap the brakes a few time.. it kills most of the energy left in the car that keeps the ecu on afterwards..

should make for a quick 10min ecu reset.. at least thats what i was told and have always done
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