Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001METRO L4-079 1.3L VIN 2 MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESFUEL PUMP
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFI
Fuel Pump
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION 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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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.