Engine Error
P0189
Fuel Temperature Sensor B Circuit Intermittent
Severity
Low
Symptoms
Intermittent check engine light, fluctuating fuel economy
Common Causes
- Loose connector on sensor B
- Wiring harness chafing
- Failing sensor
- Water intrusion in the connector
How to Fix
- 1 Secure the electrical connector
- 2 Repair and wrap wiring harness
- 3 Replace fuel temp sensor B
- 4 Dry and pack connector with dielectric grease
Estimated Repair Cost
USD
$50
–
$250
Connector repair: 50 - 100; Sensor replacement: 100 - 250