Operation CHARM: Car repair manuals for everyone.

Oxygen Sensor Diagnosis

Diagnose the fuel control Heated Oxygen Sensors (HO2S) for the following Conditions.
^ 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:
^ Signal fixed low during steady state conditions
^ Inactive sensor