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 fuel in your car is getting too hot. It's like when you leave a soda can in the sun and it gets really warm. The car doesn't like it when the fuel is too hot because it can cause problems.
The P0168 code is triggered when the vehicle's engine control module (ECM) detects that the fuel temperature is above the normal operating range.
The fuel temperature sensor monitors the temperature of the fuel in the fuel tank. If the ECM receives a signal indicating that the fuel temperature is excessively high, it will set the P0168 code. High fuel temperatures can affect fuel efficiency and engine performance.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues
• Faulty fuel temperature sensor
• High ambient temperatures
• Fuel system issues such as a clogged fuel filter
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the fuel temperature sensor and wiring for damage.
• Check for any fuel system blockages or restrictions.
• Replace the faulty fuel temperature sensor.
• Repair or replace damaged wiring or connectors.
• Ensure the fuel system is free from blockages.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly maintain the fuel system.
• Avoid driving in extremely high temperatures if possible.
• Ensure proper ventilation around the fuel tank.
Engine Performance
• Avoid driving aggressively to reduce fuel heat.
• Check for any recalls related to the fuel system.
• Consult a professional mechanic if unsure.
Check with your vehicle's manufacturer for warranty coverage on fuel system components.
This code has been more prevalent in vehicles operating in hot climates or with high mileage.
Moderate – While not immediately dangerous, it can lead to engine performance issues if not addressed.
Driving with this code for extended periods can lead to engine damage. Address the issue promptly to ensure vehicle safety and compliance with emissions regulations.
• Vehicle at operating temperature
• Fuel system under normal load
The fuel temperature sensor is typically located in or near the fuel tank.
Q: Can I drive with a P0168 code?
A: It's not recommended to drive for long periods with this code, as it can lead to engine performance issues.
Q: How can I prevent the fuel from getting too hot?
A: Ensure proper maintenance of the fuel system and avoid driving in extremely hot conditions if possible.
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