2012 Chevrolet Traverse - Pressure Damper

1999 Chevrolet Lumina

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The electronic fuel injection (EFI) pressure damper acts as a shock absorber, reducing the fuel pressure oscillations caused by the fuel injectors opening and closing. This helps keep fuel delivery to the engine smooth and prevent any air gaps in the fuel supply that could cause performance issues and often works with the fuel pressure regulator to ensure consistent fuel system performance.