For these malfunctions, first try to adjust the throttle actuator (see «Throttle Actuator Adjustment») or replace cable (see «Throttle Cable Replacement»).
If this does not lead to a positive result, replace the throttle pipe.
You will need: socket wrench (head) «at 13», Phillips screwdriver.
Warnings! It is forbidden to turn out the screws 1 fastening the throttle valve. If they are then screwed in badly and locked, the loose screw can get into the engine cylinder and damage it. The throttle valve position is adjusted at the factory, so it is not recommended to touch the throttle valve adjusting screw 2.
1. Disconnect the wire from the terminal «–» battery.
2. Drain the liquid from the cooling system (see «Coolant replacement»).
3. Loosen the tightening of the clamps and disconnect the coolant inlet 1 and outlet 2 hoses, the crankcase ventilation hose 3 and the air inlet 4 from the throttle assembly.
Note. On a car with a feedback fuel injection system, remove the canister purge hose from the lower nozzle of the throttle assembly.
4. Disconnect the throttle cable from the throttle assembly (see «Throttle Cable Replacement»).
5. Disconnect the wiring harness pads from the throttle position sensor..
6.... and from the idle speed controller.
7. Turn away two nuts of fastening of throttle knot to a receiver.
8. Remove the throttle assembly from the studs on the receiver. Please note that there are two washers under each nut (one flat and one spring). Remove the gasket from the receiver.
9. If, when replacing the throttle assembly, the throttle position sensor and idle speed controller are not installed on the new assembly, rearrange them from the old assembly. To do this, unscrew the two screws securing them.
10. Replace the damaged foam ring under the throttle position sensor.
11. Clean the contaminated throttle assembly with carburetor cleaner, having previously removed the sensor and regulator from it. Also clean the dirty regulator and sensor (Do not use solvents to clean them).
12. Install a new seal between the throttle assembly and the reservoir.
13. Install the throttle assembly in the reverse order of removal. Adjust throttle actuator (see «Throttle Actuator Adjustment»).
14. Fill the coolant into the cooling system and check its tightness (see «Coolant replacement»).