ECD SYSTEM PRECAUTION

Note


  • Replace the ECM and/or injector after the following operations:

    Replacement part Operation
    ECM

    Input injector compensation code Click here

    Injector

    Input injector compensation code Click here

  • When disconnecting the negative (-) battery cable, initialize the following systems after the terminal is reconnected.

    System See procedure
    ECD System

    Click here

  • Perform REGISTRATION (VIN registration) when replacing the ECM Click here.


  1. INJECTOR COMPENSATION CODE

    Tech Tips


    • Each injector has different fuel injection characteristics. In order to optimize fuel injection performance, the ECM compensates for these differences by adjusting the fuel injection duration of each injector according to its compensation code. Injector compensation codes are printed on the head portion of each injector.

    • If an incorrect injector compensation code is input into the ECM, the engine may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.


    1. A01CJFWE01

      When an injector is replaced, the injector's compensation code must be input into the ECM Click here.

      Note

      Although some injectors are marked with a 32-digit alphanumeric value, only the first 30-digits must to be input.

    2. When the ECM is changed, all of the existing injector compensation codes must be input into the new ECM Click here.

  2. DIFFICULT TO START ENGINE, ENGINE STALLING, OR BLACK SMOKE EMITTED


    1. Check if the customer's problem is described below. If so, refer to the troubleshooting section on the page given.


      1. Engine is difficult to start or stalls Click here.

      2. Black smoke is emitted Click here.

  3. FOR USING INTELLIGENT TESTER

    CAUTION:


    • Observe the following items for safety reasons:


      • Before using the tester, read its instruction manual.

      • Prevent the tester cable from being caught on the pedals, shift lever or steering wheel when driving with the tester connected to the vehicle.

      • When driving the vehicle for testing purposes using the tester, two people are required. One is for driving the vehicle, and the other operates the tester.