FUEL SYSTEM


  1. CONSTRUCTION


    1. A piezo type injector assembly is used to optimize fuel injection volume and reduce exhaust emissions.

    2. An injector compensation value and QR code containing encoded characteristics of the injector are printed on each injector.

    3. The injector compensation value and QR code contain various pieces of information regarding the injector, such as model code and injection volume correction.

      A00YYJ4C02
      *a QR Code *b Injector Compensation Value

      Tech Tips


      • If the ECM is replaced, use the Global TechStream (GTS) and input the injector compensation values of all 4 injectors. If one of the injectors is replaced, input the injector compensation value of the replaced injector. For details, refer to the Repair Manual.

      • QR code, which requires a special scan tool, is not used at Toyota dealers.

      • What is QR Code?


        • QR code, a matrix symbology consisting of an array of nominally square cells, allows omni-directional, high-speed reading of large amounts of data.

        • QR code encodes many types of data such as numeric, alphanumeric, kanji, kana and binary code. A maximum of 7089 characters (numeric) can be encoded.

        • QR code (2D code) contains information in the vertical and horizontal directions, whereas a bar code contains data in one direction only. QR code (2D code) holds a considerably greater volume of information than a bar code.