Disassembly
- Remove the throttle body.
- Loosen the screws and remove the throttle position sensor (pic. 6.53).
Pic. 6.53. Throttle assembly of the engine since 1999 of release: 1 - throttle position sensor; 2 - throttle assembly
Assembly
- Assembly is carried out in the reverse order of disassembly, taking into account the following.
Warnings
- Do not attempt to change the position of the engine idle speed adjusting screw (SAS). This screw is factory set with high precision and does not require adjustment.
- If such interference occurs, adjust it.
- Do not disassemble the throttle position sensor.
- Install the throttle position sensor on the throttle assembly to the position shown by the dotted line in Figure 6.54.
- To install the throttle position sensor, turn it counterclockwise and secure with screws (see fig. 6.54).
Pic. 6.54. Installing the throttle position sensor on the throttle assembly
- Measure the voltage between pin 1 (sensor power supply) and pin 2 (output signal of the 1st channel of the throttle position sensor), as well as between contact 1 (sensor power supply) and pin 4 (2nd channel throttle position sensor output signal) (pic. 6.55). Verify that when the throttle is opened from fully closed to fully open, the sensor resistance changes smoothly in accordance with the throttle opening angle.
Pic. 6.55. Throttle Position Sensor Connector Pin Arrangement
- If the resistance does not change smoothly, replace the throttle position sensor.