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IMMO off (immobilizer delete) for repair/bench
An IMMO off disables the immobilizer function in the ECU, used in repair scenarios (swapped/used ECU).
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Torque monitoring / limiter off
A torque-monitoring off removes internal ECU torque limiters that cap engine output.
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Cylinder-on-Demand (COD/AFM) disable
A COD/AFM delete disables cylinder deactivation (Active Fuel Management), keeping all cylinders active.
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Start & Stop disable (permanent off)
A Start/Stop delete permanently disables the automatic engine stop-start at idle in the ECU.
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MAF sensor delete (speed density)
A MAF delete removes reliance on the mass airflow sensor, switching to a speed-density strategy.
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Hardcut rev limiter
A hardcut limiter makes the rev limiter cut ignition/fuel abruptly for a sportier feel and audible cut.
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Launch control feature
Launch control holds a set RPM for optimal standing-start acceleration.
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Pop & Bang (crackle) map: how it works
A Pop & Bang map creates exhaust crackles and bangs on overrun by adjusting ignition and fuelling.
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TVA (throttle valve actuator) anti-shudder off
A TVA off disables the throttle/anti-shudder valve that closes at engine shut-off on some diesels.
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Vmax / speed limiter removal
A Vmax off removes or raises the factory top-speed limiter in the ECU.
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Swirl flap delete off file
A swirl flap delete disables the intake swirl (manifold) flaps management in the ECU.
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Lambda/O2 and decat off file
A lambda/decat file disables the second oxygen (lambda) sensor monitoring, used after a catalytic converter removal (decat).