Fuel injection system MPI Mitsubishi Colt 5 (CJ)

Technical and service data of the MPI injection system
The technical data of the MPI injection system are given in Table 8.1, and the service data are given in Table 8.2. Table 8.1. Technical data of the MPI injection system...

Diagnostic codes and data for checking faulty components
Diagnostic codes are given in Table 8.3, and data for checking faulty elements are given in Table 8.4. Table 8.3. 4G1 Engine Diagnostic Codes Code Defective element 11...

Checking the engine control unit
1. Connect a thin wire (for wire harness: MB991223 or paper clip) to the voltmeter probe (Figure 8.1). Figure 8.1. Checking the engine control unit 2. Insert a thin wire...

Checking the resistance and continuity between the terminals of the ECM unit
1. Turn the ignition key to the "ON" position. 2. Disconnect the control unit connector. The engine control unit from the wire connection side is shown in Figure 8.3....

Adjusting the idle speed sensor and throttle position sensor
1. Connect MUT II to the diagnostic connector. 2. Insert a 0.45 mm thick feeler gauge between the SAS bolt and the throttle lever (Figure 8.4). Figure 8.4 Insert a...

Setting the idle speed
Caution! The standard idle speed is set at the factory by adjusting the SAS setting bolt. Normally, no adjustment is required. If the setting has been mistakenly reset,...

Checking fuel pressure
1. Release residual pressure from the system to prevent fuel leakage. 2. Disconnect the line from the high pressure fuel hose (Figure 8.8). Figure 8.8. Disconnect the...

Checking the electrical continuity of the control relay and fuel pump relay
The control relay and fuel pump relay are shown in Figure 8.14. The continuity test is shown in Table 8.9 Figure 8.14. Checking the electrical continuity of the control...

Checking the inlet air temperature sensor
1. Disconnect the connector from the intake air temperature sensor. 2. Measure the resistance between terminals 1 and 2 (Figure 8.15). Normal value: 2.3-3.0 kOhm at...

Checking the coolant temperature sensor
Attention! When removing and installing the sensor, do not touch its plastic part. 1. Remove the sensor and disconnect the wiring connector from it (Figure 8.17). Figure...

Throttle Position Sensor
Examination 1. Disconnect the connector from the throttle position sensor (Figure 8.20a). Figure 8.20a. Disconnect the connector from the throttle position sensor 2....

Checking the idle speed sensor
1. Disconnect the connector from the throttle position sensor (Figure 8.21). Figure 8.21. Disconnect the connector from the throttle position sensor and check the...

Checking the fuel injector
Measuring the resistance between the injector terminals 1. Disconnect the connector from the injector (Figure 8.22). Figure 8.22. Measuring voltage between injector...

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