Typical Connections:

Typical Wire Assignments:

Software:

The AIC1 is programmed with the R4 Fuel Controller Software. When the software is launched an identification screen will appear that says Split Second. After four seconds, the maim menu will appear. If this is a new application, select File then New Customer to create a new customer. Type in the customer name and save. The default location for customer names is My Documents. When you return to the main screen, select File and Open Customer to open the customer file that you just created. Once the customer is open, the Maps, View, Options and Help tabs become active. Whenever you write new data to the AIC1, all settings and mapping will automatically be saved under the current customer name. You can fill in the various fields such as name, address etc. if you like.

Connections:

Select the proper com port for the serial connector on your computer. Remove the lid on the AIC1. Connect the AIC1 to the computer using a 9-pin serial cable. The cable must have a male plug on one end and a female on the other. Once the serial cable is plugged in and the AIC1 is powered up, you may connect to the AIC1 by selecting the Connect to ECU icon. Once communication has been established with the ECU, the Real Time pull down becomes active.

There are two map tables that can be used. Table A drives the injectors controlled by the Tan wires. These injectors can be either low or high impedance. Table B drives the injectors controlled by the Tan/Black wires. These can only be high impedance.

Programming:

Use the Options pull down and Engine Settings to select the number of cylinders of the engine. Use Options and System Settings to select Additional Injector Controller and the correct pressure reading. If you have a gauge pressure sensor, select gauge pressure. If you have an absolute sensor, select either absolute pressure or vacuum/pressure.

Use the Maps pull down to access the fuel map tables. The numbers entered into the cells on the map represent the injector on time in milliseconds. Whenever a cell is highlighted, the injector pulse width is shown in the upper left hand corner of the table.

You can click and drag to highlight an area of cells. Once highlighted, you can use the icons across the top of the window to fill all the selected cells with a value. For example, if you fill the selected cells with the value 10, whenever the manifold pressure and RPM match one of those cell locations, the injectors will be pulsed for 10 milliseconds.

A highlighted area of cells can also be changed by a percentage by using the Change By button. To increase a highlighted area of cells by 10 percent for example, select the cells, click on the Change By button and enter 10. To reduce by 50 percent, enter –50.

You can also fill a range of cells with values that are interpolated from the end points. This works over a row, column or 2-dimensional area. To fill values over a two dimensional area, fill the four corners of the area with cell values. Then click and drag to select the area encompassed by those corner cells. Click on the Auto Fill button. The software will calculate and fill the correct values for all highlighted cells.

If you are using table B as well as A, you will have to fill those values also. If you want to use the same values in tables A and B, you can copy and paste the data. Hit the Select All button while in the table you want to copy. Then press the Copy button. Go to the other map table and highlight the cell in the upper left hand corner of the table. Then press the Paste button.

Once the maps are set up, you can write to the ECU in the AIC1. To write to the ECU, the ignition must be on so that the AIC1 is powered up. The engine must be off so that tach pulses are not present during programming. To write to the ECU press the Write Data to the ECU button. The operation of writing the data will also save the configuration and map information in the current file that is open. You can also upload from the ECU using the Read Data From the ECU button. You can then save or modify the data.

Operation:

Once the data is loaded into the AIC1, the engine can be started. From the main screen, the Real Time pull down can be used to observe a variety of operating parameters. The All option brings up a window that displays boost pressure and RPM as well as pulse witch and duty cycle for both A and B injectors. The All window can be enlarged to full screen size to make it easy to read while working on the engine. The RPM and Pressure options display analog gauges that show those parameters. The All, RPM and Pressure options can all be displayed simultaneously.

Ordering Options: