Engine Error
P0145
O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)
Severity
Low
Symptoms
Failed smog check, check engine light
Common Causes
- Contaminated O2 sensor (silicone, oil, coolant)
- Aged and sluggish O2 sensor
- Exhaust leak
- High resistance in wiring
How to Fix
- 1 Replace Bank 1 Sensor 3 O2 sensor
- 2 Identify and fix source of contamination
- 3 Repair exhaust leak
- 4 Clean harness connectors
Estimated Repair Cost
USD
$100
–
$350
O2 Sensor replacement: $150 - $350