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Home >> Chevrolet >> 1998 >> Express 1 Ton Van V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Description and Operation >> System Status and Drive Cycle For Inspection/Maintenance (I/M) >> System Diagnostics
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System Diagnostics

The system diagnostics are tests that monitor and evaluate a particular emissions system and the effect that system has on vehicle emissions. The system diagnostics consist of the following:

^ The Catalyst Monitor diagnostic tests.
^ The Misfire Monitor diagnostic tests.
^ The Fuel Trim System diagnostic tests.
^ The Evaporative ([1][2]EVAP) System diagnostic tests.
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