Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with a sensor that checks the pressure in the car's fuel system. It's like a sensor that tells if a balloon is too full or too flat.
The P24D6 code indicates that the Engine Control Module (ECM) has detected a problem with the range or performance of the EVAP system pressure sensor/switch B circuit.
The EVAP (Evaporative Emission Control System) system is responsible for capturing fuel vapors from the fuel tank and preventing them from escaping into the atmosphere. The pressure sensor/switch B monitors the pressure within the EVAP system to ensure it is operating correctly. If the sensor/switch sends a signal that is outside the expected range, or if the performance of the sensor is not as expected, the ECM will trigger the P24D6 code.
• Check Engine Light is on
• Possible fuel odor
• Decreased fuel efficiency
• Faulty EVAP pressure sensor/switch B
• Wiring issues in the EVAP pressure sensor circuit
• Faulty ECM
EVAP: Evaporative Emission Control System, which prevents fuel vapors from escaping into the atmosphere.
ECM: Engine Control Module, the computer that controls the engine's operation.
• Use an OBD-II scanner to verify the code.
• Inspect the EVAP pressure sensor/switch and its wiring for damage.
• Test the sensor/switch for proper operation.
• Replace the faulty EVAP pressure sensor/switch.
• Repair or replace damaged wiring in the sensor circuit.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect EVAP system components.
• Use quality fuel to prevent contamination.
• Keep the fuel cap tightly closed.
Sensor Issue
• Have the vehicle inspected by a professional.
• Avoid overfilling the fuel tank.
Check with your vehicle manufacturer as emissions-related components may be covered under warranty.
The P24D6 code has been associated with issues in vehicles with complex EVAP systems, particularly in models with advanced emission controls.
Moderate – While not immediately critical, it should be addressed to prevent further emissions issues.
Driving with a malfunctioning EVAP system may lead to increased emissions and potential legal issues in areas with strict emissions regulations.
• Vehicle at operating temperature
• Fuel tank between 1/4 and 3/4 full
The EVAP pressure sensor is usually located near the fuel tank or within the EVAP canister.
Q: Can I drive with a P24D6 code?
A: While the vehicle may still be drivable, it's best to address the issue to avoid increased emissions and potential fuel efficiency loss.
Q: How do I reset the Check Engine Light after fixing the issue?
A: You can use an OBD-II scanner to clear the code, or the light may turn off after several 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 EVAP diagnosis points toward purge-flow or purge-control faults.
EVAP diagnosis often includes purge-flow and valve-control faults.
Confirm the failed valve and exact fitment before buying parts.
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.