Ecd System Precaution

  1. INITIALIZATION AND REGISTRATION

  1. INJECTOR COMPENSATION CODE

  1. PILOT QUANTITY LEARNING

Ecd System -- Precaution



1.INITIALIZATION AND REGISTRATION
NOTICE:
When replacing the ECM and/or any other components in the following chart, perform the corresponding utility items.

HINT:
When the ECM and other component(s) are replaced at the same time, perform the following utility items by following the instructions shown on the tester display, starting with the ECM.

Replacement Part
Utility Item
ECM
  1. Learning Values Save (Toyota Fortuner RM0000012XK04BX_02_0007.html)
  2. Learning Values Write (Toyota Fortuner RM0000012XK04BX_02_0008.html)
Engine assembly
  1. Input Injector Compensation Code (Toyota Fortuner RM0000012XK04BX_02_0003.html)
  2. Pilot Quantity Learning (Toyota Fortuner RM0000012XK04BX_02_0009.html)
Supply pump
Supply Pump Initialization (Toyota Fortuner RM000000TIN04NX.html)
Injector
  1. Input Injector Compensation Code (Toyota Fortuner RM0000012XK04BX_02_0003.html)
  2. After that perform the Pilot Quantity Learning (Toyota Fortuner RM0000012XK04BX_02_0009.html)
HINT:
When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.

2.INJECTOR COMPENSATION CODE
HINT:
  1. 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 unique, 30-digit, alphanumeric values printed on the head portion of each injector.
  2. 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.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.1Kd-Ftv Engine Control System.Ecd System.Ecd System Precaution

  1. When an injector is replaced, the injector compensation code must be input into the ECM (Toyota Fortuner RM0000012XK04BX_02_0003.html).

  2. When the ECM is replaced, all of the existing injector compensation codes must be input into the new ECM (Toyota Fortuner RM0000012XK04BX_02_0003.html).


3.PILOT QUANTITY LEARNING
HINT:
  1. By performing "Pilot Quantity Learning", the injection volume for each cylinder is precisely adjusted so that the engine runs smoothly. The "Pilot Quantity Learning" information is stored in the EEPROM of the ECM.
  2. If an incorrect pilot quantity learning value is input into the ECM, the engine may rattle or engine idling may become rough.

  1. When an injector is replaced, the injector compensation code must be input into the ECM and then perform the pilot quantity learning (Toyota Fortuner RM0000012XK04BX_02_0009.html).

  2. When the ECM is replaced, all of the existing injector pilot quantity learning values must be input into the new ECM (Toyota Fortuner RM0000012XK04BX_02_0009.html).