Regulated Fuel Pressure (V6)

REGULATED FUEL PRESSURE (V6)

Application

At Idle W/Vacuum psi (kg/cm² )

At Idle W/O Vacuum psi (kg/cm² )

Avalon, Camry, Camry Solara, Highlander & Sienna

⁽¹⁾

Tacoma, Tundra & 4Runner

⁽²⁾

⁽¹⁾	Fuel pressure should be 44-50 psi (3.1-3.5 kg/cm² ) with engine idling. Fuel pressure regulator is not vacuum controlled, as fuel pressure regulator is mounted on electric fuel pump in the fuel tank.

⁽²⁾

Check vacuum hose routing for fuel pressure regulator to determine if fuel pressure regulator is vacuum controlled. If vacuum hose is connected to engine vacuum and not vented to the air cleaner assembly, fuel pressure regulator is vacuum controlled. If vacuum hose is vented to air cleaner assembly and not to engine vacuum, fuel pressure regulator is not vacuum controlled. On models with vacuum controlled fuel pressure regulator, fuel pressure should be 33-38 psi (2.3-2.7 (kg/cm² ) with engine idling and vacuum applied, and 38-44 psi (2.7-3.1 kg/cm² ) without vacuum with engine idling. On models without vacuum controlled fuel pressure regulator, fuel pressure should be 38-44 psi (2.7-3.1 kg/cm² ) with engine idling.