(6) Repair Procedure Changes a. Differences in comparison with the conventional method of replacing injectors assembly are as shown below. NOTE: When replacing injectors with QR codes, or the engine ECU, it is necessary to record the ID codes (QR codes) in the ECU.
(If the ID codes of the installed injector are not registered correctly, engine failure such as rough idling and noise will result.) New (Injector with QR Codes) 30 alphanumeric figures-sixteen figure alphanumeric notations of fuel injection quantity correction information displaed for market service use ID Code Q000284E Replacing the Injector "No correction resistance, so no electrical recognition capability" Spare Injector Engine ECU QD1536E * Necessary to record the injector ID codes in Engine ECU Replacing the Engine ECU "No correction resistance, so no electrical recognition capability" Vehicle-side Injector Spare Engine ECU * Necessary to record the injector ID codes in the engine ECU QD1537E 21