Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a system that checks for leaks in the fuel tank area. This code means that a sensor in that system is not working right because it is sending a signal that is too low.
The P24BA code indicates that the signal from the leak detection pump pressure sensor in the EVAP system is lower than expected.
The EVAP (Evaporative Emission Control) system prevents fuel vapors from escaping into the atmosphere. The leak detection pump pressure sensor monitors the pressure in the system to ensure there are no leaks. When the sensor circuit sends a signal that is lower than the predetermined threshold, the P24BA code is triggered.
• Check Engine Light is on
• Possible fuel odor
• Failed emissions test
• Faulty leak detection pump pressure sensor
• Wiring issues such as shorts or open circuits
• Faulty EVAP leak detection pump
EVAP: Evaporative Emission Control
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the leak detection pump pressure sensor.
• Replace the leak detection pump pressure sensor.
• Repair or replace damaged wiring or connectors.
• Replace the EVAP leak detection pump if faulty.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect the EVAP system components.
• Ensure proper fuel cap sealing.
• Address Check Engine Light warnings promptly.
Sensor Issue
• Avoid overfilling the fuel tank.
• Ensure the fuel cap is tightly closed after refueling.
Check with your vehicle manufacturer as emissions-related components may be covered under warranty.
The P24BA code has been increasingly reported with the introduction of more stringent emissions regulations.
Moderate – It should be addressed soon to prevent emissions issues and ensure the vehicle passes emissions tests.
Driving with a faulty EVAP system may lead to increased emissions, which could be illegal in some regions.
• Engine off
• EVAP system sealed
The leak detection pump pressure sensor is typically located near the fuel tank or within the EVAP system components.
Q: Can I drive with a P24BA code?
A: Yes, but it is recommended to address it soon to avoid emissions issues.
Q: Will a P24BA code affect my fuel economy?
A: It might not directly affect fuel economy, but unresolved EVAP issues can lead to other problems.
Budget · Enhanced code reader
A wired color-screen reader with readiness hotkeys, live data, code definitions, and data logging.
Good for emissions-related codes because it exposes readiness monitors and live powertrain data.
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Specialty · Smoke machine
Helpful for finding EVAP and vacuum leaks that are hard to see with visual inspection alone.
Helpful for tracking down EVAP and vacuum leaks that can trigger emissions faults.
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Specialty · O2 sensor socket
Helpful when the code points toward exhaust or oxygen-sensor work and space is tight.
Useful when the diagnosis points toward oxygen-sensor removal or replacement.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.
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.