Attention! If your radio has an anti-theft code, check that you have the pairing codes before disconnecting the battery.
Attention! On models since 1993, the airbag system is disabled if the battery is disconnected for an extended period. If the airbag warning light comes on and stays on after reconnecting the battery, take it to a specialist workshop to restore the system to normal.
Parts of the induction air supply control valve
1. Remove the ground wire from the battery.
2. On the 3VZ-FE engine, disconnect the electrical connector from the cold start fuel injector and the fuel supply hose.
3. Disconnect the vacuum hoses from the brake booster, idle air conditioning valve and control valve.
4. Unscrew the bolts and remove the control valve assembly from the air intake chamber.
5. Clean the mating surfaces of the air intake chamber and control valve body.
6. Installation is made in sequence, return to removal. In this case, new gaskets must be used.