Standard Ignition PR190 Fuel Injection Pressure Regulator

Fuel Pressure Control for GM Applications

Standard Ignition PR190 is a fuel injection pressure regulator built for gas-powered systems that need stable fuel delivery and consistent engine performance. It is application-specific for proper fit and form, with a straight nipple orientation and a 53 psi operating pressure rating.

Designed for select Buick, Chevrolet, Oldsmobile, and Pontiac applications, this regulator supports accurate fuel pressure control in vehicles such as the Buick Park Avenue, Buick Regal, and Pontiac Grand Prix. Standard Ignition PR190 is engineered to help maintain the fuel system behavior these GM platforms require.

Key Features

• Fuel injection pressure regulator for gas fuel systems
• 53 psi operating pressure
• Straight nipple orientation
• Application-specific fit and form
• Includes caution sheet
• Precision-engineered for controlled fuel delivery
• Robust construction focused on reduced leakage risk

Detailed Description

The Standard Ignition PR190 fuel injection pressure regulator is designed to regulate fuel pressure at the rail so the engine receives the correct fuel supply under changing operating conditions. Its application-specific design helps ensure proper installation on supported GM vehicles, including the Chevrolet Impala, Chevrolet Monte Carlo, Buick Regal, Pontiac Bonneville, and Pontiac Grand Prix. The PR190 is a direct-fit style replacement for gas applications that require a 53 psi regulator with a straight nipple layout.

This part cross-references Delphi FP10377 and Gates 22855 for the same application. It also aligns with other listed interchange numbers, including PR111, where the vehicle application matches.

What It Helps Address

• Fuel pressure that is too high or too low at the rail
• Hard starting caused by unstable fuel delivery
• Rough idle related to inconsistent injector pressure
• Fuel odor or seepage associated with regulator leakage
• Poor drivability on GM fuel-injected V6 applications

Installation Notes and Tips

Verify the vehicle’s fuel system requirements before installation and confirm the regulator style, nipple orientation, and pressure rating match the original part. Relieve fuel system pressure before removal, inspect the sealing surfaces and connected fuel lines, and replace any damaged components found during service. Confirm fitment for 1995-2005 Buick Park Avenue, 1996-2004 Buick Regal, 1996-1999 Buick Riviera, 2004-2005 Chevrolet Impala, 1998-1999 Chevrolet Lumina, 1998-1999 Chevrolet Monte Carlo, 1998-1999 Oldsmobile Intrigue, 1996-1999 Oldsmobile LSS, 1995-1996 Oldsmobile 98, 1995 Oldsmobile 88, 1995-2003 Pontiac Bonneville, and 1997-2003 Pontiac Grand Prix.

Quality Assurance

Standard Ignition states that its manufacturing process is controlled from components through finished product, supporting consistent build quality and application accuracy for this fuel injection pressure regulator.