P0187
Fuel Temperature Sensor B Circuit Low Input
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
Want real-world data on P0187?
See which problems come with P0187, how often it shows up in other vehicles, and how to fix it — step by step.
- Real-world fix data
- How often it happens
- Step-by-step repairs
What P0187 means
- The fault code P0187 indicates that there is an issue with the circuit for fuel temperature sensor 'B' resulting in low input. This may cause improper fuel delivery leading to engine performance issues.
Possible symptoms
- Decreased fuel efficiency
- Engine may hesitate or stall
- Illuminated check engine light
Possible causes
- Faulty fuel temperature sensor
- Damaged wiring or connections in the circuit
- Corrosion or loose connections in the fuel temperature sensor circuit
- Failed engine control module (ECM)
Related parts
- Fuel Temperature Sensor: The fuel temperature sensor measures the temperature of the fuel in the fuel injector. Problems with this sensor lead to engine misfire, engine stalling
Possible solutions
- Replace the fuel temperature sensor
- Check and repair any damaged wiring or connections
- Tighten or clean any loose or corroded connections in the fuel temperature sensor circuit
- Replace the engine control module (ECM) if necessary
Free on OBD DashX
P0187 on OBD DashX
Real-world causes, how often this code shows up, and the fix — step by step.
Open P0187 No sign-up needed · available in 10 languagesScan your own car
Read and clear fault codes, live data and service resets with the CaRPM app.