LEARN

Some EFI Technology ECU features a unique self-learn management of the fuel injection. By the use of a NTK linear lambda sensor and a lambda target map, the injector pulse width measured in each fuel map breakpoint is adjusted automatically until the measured lambda value corresponds with the target value. Adjustments are stored in a separate map, called the learn map, in the ECU. This map has identical breakpoints to the fuel map, but instead of listing pulse width the corrections are listed as multiplication factors between 0 and 2, where 1 is the neutral value. Learn maps can be downloaded to the PC for analysis and transmitted back to the ECU.

Since each model of EFI Technology ECU’s uses a different communication ID, it is important to specify from which ECU you want to transmit the ECU learn calibration. Select the correct type of ECU in the upper window,

The list of available devices includes only the devices for which is provided the use of this type of calibration.
To allow ECT to manage the learn calibration, you must configure the device database using the deviceeditor. In particular you must:

• define a descriptor for the learn calibration in the section ‘Calibration parameters’ .
• define an area of memory for the learn calibration in the memory map.

Next, specify in which data directory the map is located. Make sure the correct directory is highlighted in the upper right corner, Select Directory.

The ECU learn calibrations are listed in the Select Calibration section.

Select the desired calibration and Click on SEND CALIBRATION to transmit the ECU learn calibration to the ECU.

Since each model of EFI Technology ECU’s uses a different communication ID, it is important to specify from which ECU you want to transmit the ECU learn calibration. Select the correct type of ECU in the upper window.

The list of available devices includes only the devices for which is provided the use of this type of calibration.
To allow ECT to manage thelearncalibration, you must configure the device database using the deviceeditor. In particular you must:

• define a descriptor for thelearncalibration in the section ‘Calibration parameters’
• define an area of memory for thelearncalibration in the memory map indicating that the calibration is readable by the application.

Next, specify the data directory in which you want the map to be located. Make sure the correct directory is highlighted in the upper right corner, Select Directory.

In Select Descriptor you must select which descriptor file is selected. The editor uses the descriptor file to visualise the data from the engine calibration. The descriptor is given a unique name that usually identify the type and version of ECU. Available descriptors are defined in the XML device database.

Click Read (ECU→PC) to start receiving the calibration. When are asked for a file name for the map, you can choose any key combination except <space>, / , \, , and .. You may choose to use the existing file name again, overwriting the existing file.

This section gives access to various functions of the learn system.

Since each version of EFI Technology ECU’s uses a different communication ID, it is important to specify with which ECU you want to communicate. Select the correct type of ECU in the upper window.

You can reset the stored corrections within the fuel injection self learn map, within the boost pressure map and the ignition map if the system so provides.

Select which type of reset function you require, and then select, which learn calibration contains the map to reset (if the system provides more than 1 learn calibration) and click OK.

The Min max adjusting procedure is used to set the range of the throttle potentiometer working.

You can use this feature if you have selected the linear throttle calculation method in the ECU Setup calibration.

To adjust the minimum setting, make sure any throttle stop screws are backed off fully. Click OK adjusting the minimum position. The system will confirm, click OK. Do not move the throttle valve before you have confirmed the position. Now open the throttle valve fully and click OK to set the maximum position. The system will confirm, click OK. Do not move the throttle valve before you have confirmed the position.