Thread: GT86 lags/shakes at idle and at highway
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Old 03-30-2023, 02:34 PM   #5
MJones_RB
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Try resetting your ECU first.
  • Unplug the negative battery cable for 20 minutes.
  • Plug it back in and turn on the car without touching the gas pedal.
  • Let it idle for 2 minutes.
  • Turn the car off.
  • Restart and check the idle after it warms up.

Good luck!
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