What does code P0187 mean?
Low signal detected from fuel temperature sensor B; ECU interprets fuel colder than actual
OBD-II Code
P0187 — Fuel Temperature Sensor B Circuit Low Input
Low signal detected from fuel temperature sensor B; ECU interprets fuel colder than actual
Common symptoms
- Hard starting
- rich mixture
- increased fuel consumption
Possible causes
- Signal wire shorted to ground
- faulty sensor
Initial recommendation
Inspect wiring and replace sensor if necessary.
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 P0187 with your vehicle's actual symptoms for more complete diagnostic guidance.
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