Engine Error
P0167
O2 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)
Severity
Low
Symptoms
Check engine light on startup, delayed closed-loop fuel control
Common Causes
- Burned out internal O2 sensor heater
- Blown fuse for O2 sensor heaters
- Open circuit in wiring
- Poor ground
How to Fix
- 1 Replace Bank 2 Sensor 3
- 2 Check and replace related fuses
- 3 Test continuity and repair open wires
- 4 Clean ground terminals
Estimated Repair Cost
USD
$10
–
$300
Fuse: $10; O2 sensor: $150 - $300