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 computer in the car has detected a problem with the part that controls how much fuel goes into the engine. It's like if a water faucet was stuck on high, pouring too much water into a cup.
The engine control module (ECM) has detected a high voltage condition in the circuit controlling the fuel volume regulator B.
P2373 indicates that the ECM has found an unusually high voltage signal from the fuel volume regulator B control circuit. This could be due to a malfunctioning regulator, wiring issues, or a problem with the ECM itself. The fuel volume regulator is responsible for adjusting the amount of fuel delivered to the engine, ensuring optimal performance and efficiency.
• Check Engine Light is on
• Poor fuel economy
• Engine performance issues such as stalling or rough idling
• Faulty fuel volume regulator B
• Wiring issues such as shorts or open circuits
• Faulty ECM
ECM: Engine Control Module, the computer that controls engine functions.
Fuel Volume Regulator: A device that controls the amount of fuel delivered to the engine.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the fuel volume regulator B for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the faulty fuel volume regulator B.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain the fuel system.
• Ensure wiring and connectors are in good condition.
• Use high-quality fuel to prevent deposits.
Engine Performance
• Have the vehicle inspected by a professional mechanic.
• Avoid driving the vehicle if it exhibits severe performance issues.
• Regularly check and maintain the vehicle's fuel system.
Check with the vehicle manufacturer as some fuel system components may be covered under warranty.
This code has been associated with vehicles experiencing fuel system issues, often related to wiring or component failure.
Moderate – Should be addressed soon to prevent further engine performance issues.
Ignoring this code may lead to reduced fuel efficiency and increased emissions, which could fail emissions testing in some regions.
• Engine running
• Fuel system pressurized
The fuel volume regulator is typically located on or near the fuel rail or fuel pump assembly.
Q: Can I drive with a P2373 code?
A: It's possible to drive short distances, but it's recommended to have the issue diagnosed and repaired to avoid further damage.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to poor engine performance, reduced fuel efficiency, and potential damage to the engine.
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