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Green Brook Auto Repair

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Tag Archives: ECU Tune

APR B8 S4 Program Switching - How To

APR B8 S4 Program Switching - How To

    To Enable EMCS:  Turn the ignition and cruise control to the on position. Do not start the engine. Ensure Security Lockout or Anti-Theft is disabled. To Unlock the ECU of Disable Anti-Tehft:  "SPEED+" is used to enter a digit and "SPEED-" is used to register the digit. Enter the first digit of the security code by pressing "SPEED+" the number of times corresponding to the first digit, then use "SPEED-" to register the digit. Repeat this step for each digit in the user defined security code. The check engine light and EPC light will flash to indicate the ECU is unlocked or Anti-Theft is disabled. To use Security Lockout to Lock the ECU:  Hold "RESUME" on the cruise control stalk. The check engine light will blink in set of one to three blinks indic ... read more

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