19722/P3266
From Ross-Tech Wiki
19722/P3266 - Oxygen (Lambda) Sensor B1 S1: Internal Resistance Implausible
Possible Symptoms
- Malfunction Indicator Light (MIL) ON
Possible Causes
- Faulty Oxygen Sensor
- Wiring Harness Issue
- Faulty Engine Control Module (ECM)
Possible Solutions
- Test wiring harness between ECM and Oxygen Sensor
- Replace Oxygen Sensor