P3266 OBD Code Definition:
Oxygen Sensor internal Resistance Implausible
P3266 OBD Code Description:

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