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Chevrolet
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2001
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Chevy Express G3500, Van Cargo Extended, 4.3 W
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics - 4.3L
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Inspection/Maintenance Procedures
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Inspection/Maintenance Catalyst System Set Procedure
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Barometric pressure is more than 74 kPa.
Engine coolant is 160-248°F (71-120°C).
Intake Air Temperature (IAT) is 5-167°F (-15-75°C).
Engine is in closed loop.
Engine has run for 6-8 minutes off idle.
Battery voltage is 11-18 volts.