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The Engine Control Unit (ECU) maps electrical connection points for sensors and actuators. Depending on the model year (Early vs. Late), the pin configuration may vary. : +B, +BF : Battery power supply. IGSW : Ignition switch signal to activate the ECU. BATT : Continuous battery power for memory. Sensor Inputs : THW / THA : Water and Air temperature sensor signals. PIM : Intake manifold pressure (Boost) sensor. NE+ / NE- : Engine revolution (Crankshaft Position) sensor. TDC+ : Top Dead Center signal for timing. Control Outputs :
The SPV (Spill Control Valve) and TCV (Timing Control Valve) are critical for diesel delivery and timing. 1kz ecu pinout
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