Disassembly and assembly of the throttle unit of the engine since 1999 (Mitsubishi Space Star)

Disassembly

• Remove the throttle assembly.
• Remove the screws and throttle position sensor (Fig. 6.53).

Fig. 6.53. Throttle assembly of the engine since 1999: 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's idle speed control (SAS) screw. This screw is factory-installed with high precision and requires no adjustment.
• If such interference occurs, adjust it.
• Do not disassemble the throttle position sensor.

• Install the throttle position sensor on the throttle assembly in the position shown by the dotted line in Figure 6.54.
• To install the throttle position sensor, turn it counterclockwise and secure it with screws (see Fig. 6.54).

Fig. 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 channel 1 of the throttle position sensor), and between pin 1 (sensor power supply) and pin 4 (output signal of channel 2 of the throttle position sensor) (Fig. 6.55). Make sure that when the throttle valve opens from the fully closed to the fully open position, the sensor resistance changes smoothly in accordance with the throttle valve opening angle.

Fig. 6.55. Throttle position sensor connector pin locations

• If the resistance does not change smoothly, replace the throttle position sensor.