Keep fuel pressure steady across the injector rail with the Standard Ignition Fuel Injection Pressure Regulator PR106. It installs as a direct-fit replacement for a long list of GM V6 cars, including the 1987-1989 Buick Century [V6-2.8L], 1988-1993 Buick Regal [V6-2.8L/V6-3.1L], 1987-1993 Chevrolet Beretta and Corsica, 1987-1994 Chevrolet Cavalier, 1990-1994 Chevrolet Lumina, 1988-1993 Oldsmobile Cutlass Supreme, and 1988-1993 Pontiac Grand Prix — see the Buyer's Guide tab for all 25 applications and engine codes.
- Job: Regulates the pressure difference between the fuel rail and intake manifold, routing excess fuel back to the tank to hold the injectors at their target pressure.
- Fitment: Cataloged for GM V6-2.8L and V6-3.1L engines across the listed applications.
- Per application: One regulator is used on each listed vehicle.
Signs this regulator may need replacing can include hard starting, rough idle, a fuel odor, or a fuel-pressure reading that falls outside spec. Because those symptoms can have other causes, diagnose the fuel system first; if a failed pressure regulator is the cause, this part replaces it.
Interchange: Manufacturer part number PR106.
Frequently Asked Questions
What does this part do?
It regulates the pressure difference between the fuel rail and the intake manifold, returning excess fuel to the tank so the injectors stay at their target operating pressure.
Will the PR106 fit my vehicle?
It is cataloged for GM V6-2.8L and V6-3.1L engines across 25 applications, from Buick Century to Pontiac Grand Prix. Check the Buyer's Guide tab to confirm your year, make, model, and engine.
What are signs my fuel pressure regulator may be failing?
Possible signs include hard starting, rough idle, a fuel odor, or a fuel-pressure reading outside spec. These symptoms have other causes, so diagnose the fuel system before replacing.
How many regulators do I need?
Each listed application uses one regulator, so one PR106 covers a single vehicle.
Which engines is the PR106 cataloged for?
It is listed for the V6-2.8L and V6-3.1L engines used in the applications shown in the Buyer's Guide tab.
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