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 is having trouble reading the temperature of the air going into the turbocharger because the sensor is not working right.
The P104E code is triggered when the Engine Control Module (ECM) detects a high voltage or an open circuit in the turbocharger air temperature sensor 1 circuit.
The turbocharger air temperature sensor measures the temperature of the air entering the turbocharger. This information is used by the ECM to optimize engine performance and efficiency. If the sensor's circuit is open or the voltage is too high, it indicates a problem with the sensor or its wiring.
• Check Engine Light is on
• Poor engine performance
• Reduced fuel efficiency
• Faulty turbocharger air temperature sensor
• Damaged or corroded wiring or connectors
• Open or short circuit in the sensor circuit
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors for damage or corrosion
• Test the sensor's resistance and voltage output
• Replace the faulty turbocharger air temperature sensor
• Repair or replace damaged wiring or connectors
• Clear the code and test drive the vehicle
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect wiring and connectors
• Perform routine maintenance checks
• Use high-quality replacement parts
Sensor Issue
• Address the issue promptly to avoid further engine problems
• Consult a professional mechanic if unsure about repairs
Check your vehicle's warranty for coverage on sensor issues
This code has been associated with turbocharged engines and is more common in vehicles with high mileage.
Moderate – It's important to fix this issue to maintain engine performance and efficiency.
Ignoring this code can lead to decreased engine performance and increased emissions, which may not comply with local regulations.
• Engine at operating temperature
• Turbocharger engaged
The turbocharger air temperature sensor is typically located near the turbocharger, often in the intake manifold or piping.
Q: Can I drive with a P104E code?
A: While you may be able to drive with this code, it's best to address it soon to avoid potential engine performance issues.
Q: How do I know if the sensor is faulty?
A: A multimeter can be used to test the sensor's resistance and voltage output to determine if it's functioning correctly.
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