The P0186 trouble code indicates a range or performance issue in the fuel temperature sensor B circuit. This code typically points to issues related to the sensor responsible for detecting the temperature of the fuel, potentially causing operational problems or inaccurate fuel temperature readings.
Fuel Temperature Sensor B Circuit Range/Performance
Code symptoms P0186.
1. Engine hesitation or stalling.
2. Decreased fuel efficiency.
3. Malfunction indicator light (MIL) illumination.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0186.
1. Faulty fuel temperature sensor.
2. Wiring or connector issues within the sensor circuit.
3. Potential problems with the Engine Control Module (ECM).
Code Solutions P0186.
1. Replace the fuel temperature sensor if it is faulty.
2. Check and repair any wiring or connector issues in the sensor circuit.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.