Q45 V8-4494cc 4.5L DOHC (VH45) (1992)
Oxygen Sensor: Testing and Inspection
Fig. 204 Exhaust Gas Sensor Heater Terminal Identification
1.
Check resistance between terminals A and C, Fig. 204.
2.
Resistance should be 3-1000 ohms.
3.
If resistance is not as specified, replace sensor.