Models without TCL
Throttle Body Elements
1 - idle speed controller housing;
2 - gasket;
3 - throttle body;
4 - throttle position sensor;
5 - idle speed controller.
Disassembly
After unscrewing the bolts, remove the throttle position sensor (4) (see fig.).
Unscrew the screws and remove the idle speed control housing (1).
Remove gasket (2) dampers.
Remove the screw from the throttle body (5) factory idle speed adjustment.
Attention: The position of the screw is adjusted at the factory.
Clean all parts of the throttle body.
Check for deposits in the vacuum port or fitting. Blow them out with compressed air.
Assembly
Assembly is carried out in the reverse order, taking into account the following:
Install Throttle Position Sensor (1).
Connect a multimeter between terminal 1 and terminal 2 of the throttle position sensor connector and check that the resistance gradually increases as the throttle is slowly opened.
Throttle position sensor connector
1 - throttle position sensor - power;
2 - throttle position sensor - output signal;
3 - sensor-switch of the closed position of the throttle valve;
4 - mass.
Check the circuit between terminal 3 and terminal 4 with the throttle fully closed and open.
If the circuit is open at wide throttle, turn the throttle position sensor housing counterclockwise and retest.
If faulty, replace the throttle position sensor.
Throttle body fittings
1 - vacuum tube;
2 - throttle body;
3 - idle speed controller connector;
4 - throttle position sensor connector;
5 - vacuum tube;
6 - connection pipe;
7 - gas pedal cable connection (accelerator);
8 - gasket;
A - models without TCL;
B - models with TCL.
Models with TCL
Disassembly
Loosen the clamp and remove the coolant hose.
Loosen the bolts and remove the throttle position sensor.
After unscrewing the bolts, remove the gas pedal position sensor (accelerator).
After loosening the bolts, remove the lever assembly.
Remove the idle speed control housing assembly and gasket.
Remove the factory idle speed screw.
Throttle Body Elements
1 - throttle position sensor;
2 - throttle body;
3 - idle speed adjustment screw;
4 - growl assembly;
5 - gas pedal position sensor (accelerator);
6 - hose of the cooling system;
7 - idle speed regulator;
8 - gasket.
Assembly
Assembly is carried out in the reverse order, taking into account the following:
Install the gas pedal position sensor (accelerator) (1), as shown in the figure and tighten the screws to secure it.
Connect a multimeter between pin 3 and 4 of the gas pedal position sensor connector (accelerator) and check that when the throttle is slowly opened (until its full opening), the resistance gradually increased.
Check the circuit between terminal 2 and terminal 1. The circuit should be closed at full throttle and open at open throttle.
If the circuit is open at full throttle, rotate the gas pedal position sensor housing (accelerator) clockwise and check again.
If there is a malfunction in the sensor, then replace the gas pedal position sensor (accelerator).
Install Throttle Position Sensor (see description of models without TCL).
Gas Pedal Position Sensor Connector (accelerator)
1 - mass;
2 - throttle position sensor;
3 - power supply for the gas pedal position sensor;
4 - output signal of the gas pedal position sensor.