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 detected that the temperature of the exhaust gases coming from the engine is too high on one side of the engine.
The engine control module (ECM) monitors the temperature of the exhaust gases to ensure they are within a safe range. If the temperature is too high, it can cause damage to the engine or exhaust components.
The P2428 code is triggered when the ECM detects a temperature in the exhaust system that exceeds the predetermined threshold for Bank 1. This can be due to various factors such as a malfunctioning sensor, engine running too rich or lean, or issues with the exhaust system itself.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues
• Unusual exhaust smells
• Potential engine overheating
• Faulty exhaust gas temperature sensor
• Exhaust leaks
• Engine running too rich or too lean
• Malfunctioning catalytic converter
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Catalytic Converter: A device in the exhaust system that reduces harmful emissions.
• Use an OBD-II scanner to confirm the code.
• Inspect the exhaust gas temperature sensor and wiring for damage.
• Check for exhaust leaks or blockages.
• Verify the engine's air-fuel mixture is correct.
• Test the catalytic converter for proper operation.
• Replace the exhaust gas temperature sensor if faulty.
• Repair any exhaust leaks.
• Adjust the air-fuel mixture if necessary.
• Replace the catalytic converter if it is not functioning properly.
• Reprogram or replace the ECM if needed.
• OBD-II scanner
• Multimeter
• Infrared thermometer
• Wrench set
• Diagnostic software
$150 - $600
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly service the vehicle and maintain proper engine tuning.
• Inspect the exhaust system for leaks during routine maintenance.
• Ensure the engine is not running too rich or too lean.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if you notice any symptoms.
• Regular maintenance can help prevent such issues.
Check with your vehicle manufacturer for warranty coverage on exhaust components.
This code has been reported in vehicles with high mileage or those with modified exhaust systems.
Moderate – Address the issue soon to prevent potential engine or exhaust damage.
Driving with this code may lead to increased emissions and potential damage to the vehicle, which could be unsafe.
• Engine at operating temperature
• Vehicle running under normal driving conditions
The exhaust gas temperature sensor is located in the exhaust system, typically near the catalytic converter on Bank 1.
Q: Can I drive my car with a P2428 code?
A: It's not recommended to drive for extended periods with this code, as it may lead to engine or exhaust damage.
Q: How do I reset the Check Engine Light after fixing the P2428 code?
A: You can use an OBD-II scanner to clear the code, or it may reset itself after a few driving cycles if the issue is resolved.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
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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.