Corsica L4-2.2L VIN 4 (1995)
Oxygen Sensor: Testing and Inspection
OXYGEN SENSOR TESTING
A Tech 1 scan tool has several positions that indicate the state of the exhaust gases Oxygen Sensor (O2S) voltage, short term fuel trim, and long
term fuel trim. A fault in the O2S circuit should set a Diagnostic Trouble Code (DTC) 13 (open circuit), DTC 44 (lean exhaust indication), or
DTC 45 (rich exhaust indication).
