Fault codes › P0186
P0186
Fuel Temperature Sensor B Circuit Range/Performance
Generic code
Fuel and Air Metering
High severity
Hard repair
Free on OBD DashX
Want real-world data on P0186?
See which problems come with P0186, 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
See P0186 on OBD DashX
No sign-up needed · available in 10 languages
iWhat P0186 means
- The fault code P0186 indicates that there is a problem with the circuit range or performance of the fuel temperature sensor B. This can cause issues with fuel economy and engine performance.
!Possible symptoms
- Decreased fuel economy
- Rough engine idle
- Illuminated check engine light
- Reduced engine performance
?Possible causes
- Failed fuel temperature sensor "B"
- Corroded or damaged electrical connections
- Faulty wiring in the 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 "B"
- Inspect and repair any damaged or corroded electrical connections
- Check and repair any faulty wiring in the circuit
- Replace the engine control module (ECM) if necessary