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On the dashboard of vehicles equipped this fuel injection system, installed lamp indicate faults THE "CHECK ENGINE" . It lights up if there are any errors in the system injection and points to the need for diagnostics and Troubleshooting. In memory e.the control unit is memorized two-digit error code, which can to be read with a multi-tester or normal analog DC voltmeter the current limit of measurement 25-30 volts.

Erasing error codes in the ECU memory occurs when the power is turned off. If You need to delete it, if necessary the ignition is switched off disable the positive terminal of the battery for 10-15 seconds. Accordingly, a self-test should be done no less than 10-20 minutes of operation car (better at different loads), after the last shutdown of the battery.

By car "Lancer" read error codes are produced using the connector installed in the lower space to the left, next to the box the fuse. For this multi-tester is connected to this Jack. Further you must follow specific instructions the tester. Reading error codes with a voltmeter, must be switched off ignition connect voltmeter 1 output connector (+) and 12 (mass). Usually 12 to the outlet is connected with the mass of the wire is black, but better pre - his ring to ground. The positive conclusion (1) diagnostic connector located diagonally opposite. The connection should be switched off the ignition, otherwise, you can disable the email.block management.

Reading the codes is included in the ignition ( not the starter ). At the time of ignition on the voltmeter needle should briefly to deviate. Then the ECU will issue error codes - first longer pulses (the MSB of the code), then short pulses (Junior category). You should record the number of pulses in the table to determine the search direction of the fault.

The presence of pulses of the same duration (only a short pulses) corresponds to no error codes stored in ECU memory. In this case if there is a fault, it is necessary to make a test trip lasting at least 10-15 minutes and repeat self-test.

If the voltmeter needle deviated one times and did not return to zero, then a fault is present in the ECU. After reading the error codes need off the ignition, disconnect the tester or voltmeter and begin to address the malfunction. This is followed by when the ignition is off disconnect the positive battery terminal for at least 10-15 seconds. and carry out a test drive. Then repeat self-diagnosis. If error codes the ECU does not throw the repetition of the above operations is not required if you received a new error code, you need to resolve the following problem and repeat the self-test again.

Table of error codes ECU Mitsubishi MPI" 11 Lambda probe 12 The air flow meter 13 The air flow sensor 14 Sensor, throttle position 15 The crankshaft position sensor 21 The coolant temperature sensor 22 The sensor of angular position of the crankshaft 23 The sensor TDC of the first cylinder 24 Sensor vehicle speed 25 The air pressure sensor 31 Knock sensor 36 The ignition timing 41 Injectors 42 Fuel pump 44 Ignition coil code 15 only match the engine of 1.5 liters.
code 36 will only match the engine of 1.5 liters.
code 42 may point to a fault relays
code 44 corresponds to only 16-valve engine

PS It should be noted that read the error codes are not always clearly indicate the failure of a sensor or element of the injection system. In the diagnosis of the injection system must to compare data of the ECU, constructive the reaction of the sensors and the specific behavior of the engine at idle and under load.

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