Toyota 22270-75020 Valve Assembly, Idle Speed Control

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Clean and inspect the mounting surface of the lower intake manifold and the air intake plenum before positioning the new gasket. Install the assembly onto the intake manifold, ensuring the gasket remains in place, and tighten the bolts to the specified torque. Installation is otherwise the reverse of removal.

1. Relieve the fuel pressure and detach the cable from the negative terminal of the battery. 2. Detach the vacuum sensing hose from the regulator. 3. Place a metal container or shop towel under the fuel return hose. 4. Squeeze the hose clamp and detach the fuel return hose from the regulator. 5. On four-cylinder engines, detach the fuel return line and remove the two regulator bolts. On 3.0L V6 engines, use a wrench to unscrew the regulator. On 3.4L V6 models, the regulator is located on the rear of the intake plenum. 6. On 2.4L, 2.7L, and 3.4L engines, remove the pressure regulator mounting bolts and detach the regulator from the fuel rail. On 3.0L engines, unscrew the regulator and retrieve the O-ring. 7. Use a new O-ring and ensure the pressure regulator is installed properly on the fuel rail. The remainder of installation is the reverse of removal.