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Home >> Jeep >> 1988 >> Wagoneer >> Repair and Diagnosis >> Engine Performance >> System >> 2.5L CEC System >> Modes Of Operation >> Ignition Switch "Off" Mode
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Ignition Switch "Off" Mode

When ignition switch is turned "OFF", the ECU ceases to provide ground for the injector and all fuel injection stops. The ECU causes the idle speed actuator to fully extend for the next start up. The ECU then deactivates.