Operation CHARM
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Chevrolet
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1998
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Metro L4-079 1.3L VIN 2 MFI
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Repair and Diagnosis
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Relays and Modules
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Relays and Modules - Powertrain Management
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Common OBD II Systems
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Warm-Up Cycle
Warm-Up Cycle
A warm-up cycle means that the engine temperature must reach a minimum of 70°C (160°F) and rise at least 22°C (40°F) over the course of a trip.