• Check Engine Light illuminated
• Engine may run rough or stall
• Reduced fuel efficiency
• Faulty injector control pressure regulator
• Open or shorted wiring in the control circuit
• Poor electrical connection at the pressure regulator
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• P2624
• P2625
Injector Control Pressure Regulator Circuit/Open
The car's computer is having trouble controlling the pressure of fuel going to the engine because there's a problem with the wires or connections.
This code indicates that there is an issue with the electrical circuit that controls the pressure regulator for the fuel injectors.
The P2623 code is triggered when the Engine Control Module (ECM) detects an open circuit or malfunction in the injector control pressure regulator circuit. This circuit is responsible for managing the pressure of fuel delivered to the injectors, ensuring optimal engine performance and efficiency.
• Scan the vehicle with an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the injector control pressure regulator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the injector control pressure regulator if faulty.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-Series
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain vehicle wiring.
• Ensure connectors are clean and secure.
• Follow scheduled maintenance for fuel system components.
Engine Performance
• Do not ignore the Check Engine Light.
• Seek professional diagnosis if unsure.
• Avoid driving with this issue for extended periods.
Check with your vehicle manufacturer or warranty booklet for coverage details.
This code has been associated with issues in vehicles with high mileage or those that have experienced poor maintenance.
Moderate – Addressing this issue promptly can prevent further engine performance problems.
Driving with a malfunctioning fuel system can lead to reduced performance and increased emissions.
• Engine at operating temperature
• Vehicle in park or neutral
The injector control pressure regulator is typically located on or near the fuel rail or injectors.
Q: Can I drive my car with a P2623 code?
A: It's not recommended to drive for extended periods with this code as it can lead to further engine performance issues.
Q: How can I prevent a P2623 code?
A: Regular maintenance and inspections of the fuel system and electrical connections can help prevent this issue.
