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 a sensor in the car that measures how hot the exhaust is might not be working right.
The P246F code is triggered when the engine control module (ECM) detects a problem with the exhaust gas temperature sensor's performance or range in Bank 1, Sensor 4.
The exhaust gas temperature sensor measures the temperature of the exhaust gases leaving the engine. This information is used by the ECM to optimize engine performance and emissions. If the sensor's readings are outside the expected range, the ECM will trigger the P246F code.
• Check Engine Light illuminated
• Poor fuel economy
• Possible engine performance issues
• Faulty exhaust gas temperature sensor
• Wiring issues such as shorts or opens in the sensor circuit
• Poor electrical connection at the sensor
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the exhaust gas temperature sensor and its wiring for damage.
• Test the sensor's resistance and compare it to the manufacturer's specifications.
• Replace the faulty exhaust gas temperature sensor.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive the vehicle to ensure the issue is resolved.
• OBD-II scanner
• Digital multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect sensor wiring for damage.
• Maintain the exhaust system to prevent excessive heat exposure.
• Ensure proper engine maintenance to avoid sensor damage.
Sensor Issue
• Have the vehicle inspected by a professional if you are unsure.
• Avoid driving long distances until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on emission-related components.
The P246F code has been more common in vehicles with advanced emission systems that rely heavily on sensor data.
Moderate – It is advisable to address this issue soon to prevent potential engine performance problems.
Driving with a faulty exhaust sensor can lead to increased emissions and potential legal issues in areas with strict emission laws.
• Engine at operating temperature
• Vehicle stationary or idling
The exhaust gas temperature sensor is typically located in the exhaust system, near the catalytic converter or turbocharger.
Q: Can I drive with a P246F code?
A: It's possible to drive short distances, but it's best to fix the issue to avoid potential engine damage.
Q: How long does it take to fix a P246F code?
A: Repair time can vary, but it typically takes 1-2 hours depending on the complexity of the issue.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.