With these malfunctions, first try to adjust the throttle actuator or replace the cable (see «Throttle cable adjustment and replacement»). If this does not lead to a positive result, replace the throttle assembly.
To remove and install the throttle assembly on a car, you will need: a socket wrench (head) «at 13», Phillips screwdriver.
1. Drain the coolant from the engine cooling system (see «Coolant replacement»).
2. Disconnect the wire from the terminal «minus» battery.
3. Having pressed the latches, disconnect the wire harness connectors from the TPS (throttle position sensor)...
4....and IAC (idle speed controller).
5. Loosen the hose clamp of the large branch of the crankcase ventilation system and disconnect the hose from the air inlet pipe.
6. Loosen the clamp securing the air supply pipe to the throttle assembly and disconnect the pipe.
7. Loosen the hose clamps for the drain and coolant supply hoses and remove the hoses from the throttle assembly fittings. When doing this, note that a small amount of coolant will pour out of the hose. Therefore, substitute a container under the hose or place a rag.
8. After loosening the fastening clamps, disconnect the hose of the small branch of the crankcase ventilation system from the fittings of the throttle assembly...
9.... and canister purge hose.
10. Disconnect the throttle cable from the throttle assembly sector (see «Throttle cable adjustment and replacement»).
11. Turn off two nuts of fastening of throttle knot...
12.... and remove the throttle assembly from the intake module studs.
13. Remove the gasket from the intake module.
14. If, when replacing the throttle assembly, idle speed controller 1 and throttle position sensor 2 are not installed on the new throttle assembly, rearrange them from the old throttle assembly. To do this, unscrew the two screws securing them.
15. Clean the contaminated throttle assembly with carburetor cleaning fluid, having previously removed the TPS from it (throttle position sensor) and IAC (idle speed controller). Also clean dirty idle control and throttle position sensor (do not use solvents for cleaning).
16. Establish on the car throttle knot and all removed details in an order, the return to removal.
17. Adjust throttle actuator (see «Throttle cable adjustment and replacement»).