P0186
Fuel Temperature Sensor B Circuit Range/Performance
P0186 is an OBD-II diagnostic trouble code meaning: Fuel Temperature Sensor B Circuit Range/Performance. Common causes: faulty fuel temperature sensor b, open or short circuit in the sensor circuit. Estimated repair cost: $33–167.
Symptoms
- Unstable engine operation
- Increased fuel consumption
- Difficulty starting the engine
- Power Loss
Causes
- Faulty fuel temperature sensor B
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the engine ECU
How to Fix
- Checking the condition of the sensor connector and wiring
- Checking the sensor resistance (comparison with reference values)
- Checking voltage and grounding in the sensor circuit
- Replacing a faulty sensor
- Resetting the error code and checking the system operation
Related codes
Error P0186 by Vehicle Brand
FAQ
What does the P0186 code mean?
P0186 is an OBD-II diagnostic trouble code that indicates: Fuel Temperature Sensor B Circuit Range/Performance
What causes a P0186 error code?
The most common causes of P0186 include: Faulty fuel temperature sensor B; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine ECU.
How do I fix a P0186 diagnostic trouble code?
To fix P0186: Checking the condition of the sensor connector and wiring. Checking the sensor resistance (comparison with reference values). Checking voltage and grounding in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0186?
Limited driving only, diagnose soon
How much does it cost to fix P0186?
The estimated repair cost for P0186 is $33–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat