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Home >> Toyota >> 1998 >> Avalon XLS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Fuel System >> Fuel Delivery >> Fuel Pressure Regulator (Celica, Land Cruiser, LX470, Supra Turbo, Tacoma, T100 & 4Runner)

Fuel Pressure Regulator (Celica, Land Cruiser, LX470, Supra Turbo, Tacoma, T100 & 4Runner)

Mounted on fuel rail, vacuum-operated fuel pressure regulator maintains constant fuel pressure to fuel injectors. As throttle is depressed and manifold vacuum decreases, fuel pressure regulator increases fuel pressure to maintain a constant fuel flow to fuel injectors.

NOTE: Fuel pressure control system may also be referred to as fuel pressure-up system.
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