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 the part of the car that controls how much fuel goes to the engine. It's like when a faucet doesn't open properly, so water doesn't flow as it should.
The engine control module (ECM) has detected an open circuit in the fuel volume regulator B control circuit, which affects fuel delivery to the engine.
The P2370 code indicates that the ECM has found an open or a disconnection in the circuit that controls the fuel volume regulator B. This regulator is responsible for managing the amount of fuel sent to the engine for optimal performance and efficiency.
• Check Engine Light is on
• Poor engine performance
• Engine may not start or may stall
• Faulty fuel volume regulator B
• Damaged or corroded wiring or connectors
• Blown fuse related to the fuel system
ECM: Engine Control Module, the computer that controls engine functions.
Fuel Volume Regulator: A component 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.
• Replace any blown fuses related to the fuel system.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect fuel system wiring and connectors.
• Ensure fuel filters are replaced as per maintenance schedule.
• Use high-quality fuel to avoid contamination.
Engine Performance
• Avoid driving the vehicle until the issue is resolved to prevent further damage.
• Consult with a professional mechanic for accurate diagnosis and repair.
Check with your vehicle's manufacturer for warranty coverage on fuel system components.
This code has been associated with vehicles experiencing fuel delivery issues due to electrical faults in the fuel system.
Moderate – This issue should be addressed soon to avoid potential engine performance problems.
Driving with a malfunctioning fuel system can lead to increased emissions and potential safety hazards.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The fuel volume regulator B is typically located near the fuel rail or within the fuel pump assembly.
Q: Can I drive my car with a P2370 code?
A: It's not recommended to drive with this code, as it can lead to poor engine performance and potential safety issues.
Q: How can I prevent a P2370 code?
A: Regular maintenance of the fuel system and using quality fuel can help prevent this issue.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.