General Engine Management / Tuning Forum Discuss general EMS tuning concepts that do not pertain to a specfic brand or product.

Key program and ecu tune

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May 21, 2008 | 06:11 AM

mac11wildcat

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Key program and ecu tune

if my ECU is tuned will having a second key programmed cause the tune to go back to stock? Mitsubishi seems to not have a clue.