Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the temperature sensor for the fuel rail is reading too high. It's like a thermometer that's saying it's much hotter than it should be.
The P106B code indicates that the Engine Control Module (ECM) has detected a high voltage signal from the fuel rail temperature sensor on bank 1, suggesting an abnormally high temperature reading.
The fuel rail temperature sensor monitors the temperature of the fuel in the rail. When the ECM receives a signal voltage that is higher than the expected range, it triggers the P106B code. This could be due to a short circuit, a faulty sensor, or an issue with the ECM itself.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues
• Faulty fuel rail temperature sensor
• Wiring issues or short circuit in the sensor circuit
• Faulty Engine Control Module (ECM)
ECM: Engine Control Module
Fuel Rail: A pipe that delivers fuel to the engine's injectors
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel rail temperature sensor for proper operation.
• Replace the fuel rail temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain sensor wiring.
• Ensure proper fuel system maintenance.
• Avoid excessive heat exposure to engine components.
Sensor Issue
• Avoid long drives until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis.
Check if the vehicle's powertrain warranty covers sensor replacements.
This code has been associated with sensor failures in vehicles with higher mileage.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a faulty sensor can lead to inefficient fuel usage and potential engine damage.
• Engine at operating temperature
• Vehicle in a safe and controlled environment
The fuel rail temperature sensor is typically located on the fuel rail near the engine.
Q: Can I drive with a P106B code?
A: It's not recommended as it can lead to poor fuel economy and potential engine damage.
Q: How do I clear a P106B code?
A: After fixing the issue, use an OBD-II scanner to clear the code from the ECM.
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