Models without TCL
Throttle Body Elements
1 - idle speed controller housing; 2 - gasket; 3 - throttle body; 4 - throttle position sensor; 5 - idle speed adjustment screw.
Disassembly
Loosen the bolts and remove the throttle position sensor (4).
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.
CAUTION: The screw position 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.
Models with TCL
Throttle Body Elements
1 - throttle position sensor; 2 - throttle body; 3 - idle speed adjustment screw; 4 - lever assembly; 3 - gas pedal position sensor (accelerator); 6 - hose of the cooling system; 7 - idle speed controller; 8 - gasket.
Check the circuit between terminal 3 and terminal 4 of the throttle position sensor at wide and open throttle.
If the circuit is open at wide throttle, turn the throttle position sensor housing counterclockwise and retest.
If faulty, replace the throttle position sensor.
Disassembly
Loosen the clamp and remove the coolant hose.
Loosen the bolts and remove the throttle position sensor.
After unscrewing the bolts, remove the accelerator pedal position sensor.
After unscrewing the bolts, remove the lever assembly assembly.
Remove the idle speed control housing assembly and gasket.
Remove the factory idle speed screw.
Assembly
Assembly is carried out in the reverse order, taking into account the following:
Install the accelerator pedal position sensor (1), as shown in the figure and tighten the screws to secure it.
Connect a multimeter between terminal 3 and 4 of the accelerator pedal position sensor connector and check that when the throttle is slowly opened (until its full opening), the resistance gradually increased.
Accelerator Pedal Position Sensor Connector
1 - mass; 2 - throttle position sensor; 3 - power supply for the accelerator pedal position sensor; 4 - output signal of the accelerator pedal position sensor.
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, turn the accelerator pedal position sensor housing clockwise and check again.
If there is a malfunction in the sensor, replace the accelerator pedal position sensor.
Install Throttle Position Sensor (see description of models without TSL).