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 MANUALSCHEVROLET1998METRO L4-079 1.3L VIN 2 MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULEDESCRIPTION AND OPERATIONSERIAL DATA COMMUNICATIONSISO (9141-2) SERIAL DATA
1998 Chevrolet Metro L4-079 1.3L VIN 2 MFI
ISO (9141-2) Serial Data
1998 Chevrolet Metro L4-079 1.3L VIN 2 MFISECTION ISO (9141-2) Serial Data
The 1998 Chevrolet Metro utilizes the International Organization for Standardization (ISO [9141 - 2]) communications system. ISO (9141 - 2) specifies the requirements for setting up the interchange of digital information between the on-board emission-related engine control modules of road vehicles and the OBD II scan tool as specified in J1978. This communication is established to facilitate compliance with California Code of Regulation. The most significant result of this regulation is that the regulation provides the scan tool manufacturers with the capability of accessing data from any make or model vehicle.
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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.