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 PROCEDURESIAC DUTY CYCLE
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFI
IAC Duty Cycle
2001 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION IAC Duty Cycle
The scan tool range is 20% to 40%: The IAC Duty Cycle parameter indicates the opening of the idle air (bypass) passage as a percentage. The IAC Duty Cycle percentage will increase when the PCM commands a larger idle air passage opening. The IAC Duty Cycle percentage will decrease when the PCM commands a smaller idle air passage opening.
RENDER: 1.0x
NO RELATED
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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.