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Engine-Codes – Generic – P0168

P0168 Code - Fuel Temperature Too High

Quick Answer

The P0168 code indicates that the fuel temperature in the vehicle's fuel system is too high, which can lead to various performance issues. Common causes include Malfunctioning fuel temperature sensor, Clogged fuel filter, Faulty fuel pump. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0168 indicates Fuel Temperature Too High.
Common causes
Common causes include Malfunctioning fuel temperature sensor, Clogged fuel filter, Faulty fuel pump.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0168 Description

The P0168 code indicates that the fuel temperature in the vehicle's fuel system is too high, which can lead to various performance issues. The fuel temperature is a crucial factor in maintaining the efficiency and proper functioning of the engine. When the fuel temperature is too high, it can negatively affect the combustion process, leading to reduced engine performance, decreased fuel efficiency, and potential damage to engine components.

OBDII Code P0168 - Fuel Temperature Too High
P0168 Code - Fuel Temperature Too High

Common Causes of P0168

  1. Malfunctioning fuel temperature sensor
  2. Clogged fuel filter
  3. Faulty fuel pump
  4. Issues with the fuel injection system

Symptoms of P0168

  1. Reduced engine performance
  2. Decreased fuel efficiency
  3. Engine overheating
  4. Rough idling
  5. Check engine light illuminated

How to Fix P0168

  1. Perform a diagnostic scan to retrieve the trouble code and identify the specific cause of the high fuel temperature.
  2. Inspect the fuel temperature sensor and replace it if faulty.
  3. Check the fuel filter for any clogs or blockages and replace if necessary.
  4. Test the fuel pump's functionality and replace if it is not operating correctly.
  5. Inspect the fuel injection system for any issues and repair or replace components as needed.

Cost to Fix P0168

The cost of repairing a P0168 code can vary depending on the specific cause of the issue and the vehicle's make and model. On average, the repair costs for this issue can range from $100 to $500, including parts and labor. However, it's essential to consider that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

What does this mean?

Tech Notes for P0168





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Code P0168 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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