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Home >> Chevrolet >> 2002 >> Corvette V8-5.7L VIN S >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Engine Control Module >> Description and Operation >> Powertrain Control Module (PCM) Description >> Oxygen Sensor Diagnosis
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Oxygen Sensor Diagnosis

Diagnose the Fuel Control Heated Oxygen Sensors for the following conditions:
^ Heater Performance (time to activity on cold Stan)
^ Slow Response
^ Response Time (time to switch R/L or L/R)
^ Inactive Signal (output steady at bias voltage - approximately 450 mV)
^ Signal Fixed High
^ Signal Fixed Low

Diagnose the Catalyst Monitor Heated Oxygen Sensors for the following functions:
^ Heater Performance (time to activity on cold start)
^ Signal fixed low during steady state conditions
^ Inactive Sensor