Standard Ignition PR221 Fuel Injection Pressure Regulator

Overview of Standard Ignition Fuel Injection Pressure Regulator PR221

The Standard Ignition PR221 fuel injection pressure regulator is designed to maintain consistent fuel pressure in gas fuel systems. Engineered for select INFINITI and Nissan models, including the 300ZX and J30, this regulator ensures optimal fuel delivery and engine performance.

• Regulates fuel injection pressure at 45 psi for stable fuel flow
• Angled nipple orientation for precise fuel line connection
• Compatible with gas fuel systems on INFINITI 300ZX and Nissan J30
• Includes caution sheet for safe installation and handling

Technical Details and Features

This fuel injection pressure regulator operates at a fixed pressure of 45 psi, which is critical for maintaining the correct fuel pressure in the fuel injection system. The angled nipple orientation facilitates easier installation and proper fuel line alignment, reducing the risk of leaks or improper fuel delivery. Designed specifically for gas fuel systems, this part is compatible with the fuel injection systems found in the INFINITI 300ZX and Nissan J30 models. The PR221 part number identifies this regulator within the Standard Ignition product range, ensuring precise fitment and function.

Applications and Problem Resolution

This fuel injection pressure regulator is used to control and stabilize fuel pressure in the fuel injection system, which is essential for engine efficiency and performance. It addresses several common issues, including:

• Fluctuating or inconsistent fuel pressure causing engine hesitation
• Poor fuel economy due to improper fuel delivery
• Engine stalling or rough idling linked to fuel pressure irregularities
• Fuel leaks or pressure loss from worn or damaged regulators
• Check engine light codes related to fuel system pressure faults

Installation Notes and Tips

When installing the Standard Ignition PR221 fuel injection pressure regulator, ensure the fuel system is depressurized before removal of the old regulator. The angled nipple orientation requires careful alignment with the fuel line to prevent leaks. Follow the included caution sheet for safety guidelines and torque specifications. It is recommended to inspect fuel lines and connectors for wear during installation and replace any damaged components to maintain system integrity.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The PR221 fuel injection pressure regulator undergoes rigorous quality control to ensure consistent operation at the specified 45 psi pressure. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.