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Here's a good reset.
• Unplug the negative battery terminal
• Let the car sit for 20 minutes.
• Replug the negative battery terminal
• Turn the engine on WITHOUT pressing the gas pedal
• Allow engine to idle for 2 minutes
• Turn off engine
This will reset the ECU's learning curve, allowing you to teach it your driving habits. I had to do this after my last tune-up at the dealers. When I got the car back, the idle was way high. After the reset it was back to normal.
Good luck!
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