What does code P0189 mean?
Intermittent or fluctuating signal detected from fuel temperature sensor B
OBD-II Code
P0189 — Fuel Temperature Sensor B Circuit Intermittent
Intermittent or fluctuating signal detected from fuel temperature sensor B
Common symptoms
- Hesitation
- variable mixture
- check engine light
Possible causes
- Intermittent connector contact
- harness vibration
- failing sensor
Initial recommendation
Inspect harness and replace sensor if readings fluctuate.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine code P0189 with your vehicle's actual symptoms for more complete diagnostic guidance.
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