Lancer Evolution L4-2.0L Turbo (4B11T/C) (2010)
Engine Control Module: Removal and Replacement
Engine Control Resistor
ENGINE CONTROL RESISTOR
REMOVAL AND INSTALLATION
Removal Steps 1-3
Engine Control Module (ECM)
ENGINE CONTROL MODULE (ECM)
REMOVAL AND INSTALLATION
CAUTION:
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When replacing the engine control module (ECM), do not replace the immobilizer-ECU (WCM) or KOS-ECU at the same time with
ECM. When replacing multiple ECUs, always replace only one ECU at a time and complete necessary ID registration using the scan tool.
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After the engine control module (ECM) replacement, idling speed may be unstable because the MFI engine learning is not completed. To
make it stable, let the system learn the idling.
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After the engine control module (ECM) replacement, register a key code using the scan tool.
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When the engine control module (ECM) is replaced, save the vehicle identification number and perform the variant coding.
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When the engine control module (ECM) is replaced, the initial learning value of timing chain elongation amount must be stored and
written by using the scan tool.
Pre-removal And Post-installation Operation