Cherokee 4WD L6-242 4.0L VIN M FI (1988)
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The ECU stops supplying power to the injectors.
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Ignition system power is shut off.
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Fuel pump relay ground path is broken by the ECU which causes the fuel pump operation to cease.
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The ECU positions the idle speed stepper motor in anticipation of the next start-up and de-energizes the B + latch relay.