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Home >> Chevrolet >> 1999 >> Metro L4-079 1.3L VIN 2 MFI >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Scan Tool Data Definitions - Powertrain Systems >> Fuel Pump
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Fuel Pump

The Fuel Pump parameter indicates that the PCM is turning ON the fuel pump by turning ON the fuel pump relay. The PCM will turn the fuel pump relay ON for two to three seconds when the ignition is turned ON. The PCM will turn the fuel pump relay ON continuously when receiving reference pulses from the ignition module.
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