Haltech IG5 - Manual (Page 33)

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It is possible to program the IG5 numerically. To enter the numeric mode press
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. A
spreadsheet of ignition advance data versus engine load and speed will appear. Use the
arrow keys to navigate the spreadsheet by moving the highlighted cursor to the required
field. Changes can be made by typing the ignition advance as a decimal number
representing degrees of advance (°BTDC). The whole spreadsheet is too large to display all
at once and the remainder can be accessed by using the arrow keys to shift the spreadsheet to
the left or right.
To return to the standard bar graph mode by hitting the ESC key. This method of mapping
can be extremely time consuming so the Haltech allows you to change the numbers by
manipulating maps presented as bar graphs which is much simpler and allows you to
visualize the result.
4.7 How To Quit
Pressing
♣θ ♣θ ♣θ ♣θ
at any page or map will allow you to exit the Haltech program and will return
you to MS-DOS. You should always exit the program before switching off your computer.
The best way to initialize the Ignition Map is to use the Library Maps, and then return to the
Ignition Map later if the ignition curve needs modification. Ignition Library Maps are
explained in Chapter 5 [5.4], Starting the Engine.
4.8 Time Saving Functions
The following is a list of commands that can be used when the ignition maps are displayed.
These commands provide easy access to specific areas of the maps during tuning.
4.8.1 Current Location
Pressing
″″″″
will take you to the range at which the engine is running, and highlight the bar that
is currently being used. This bar is easily identified by the arrow above it pointing down. As
the engine speed and load changes, the arrow moves with it. The Home key can be used to
find the engine's operating point quickly.
4.8.2 All Ranges
The All Ranges function allows the user to initialize all RPM ranges with the same data.
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enables the All Ranges function and “All Ranges” will appear under the title.
When the All Ranges function is active, a bar adjusted on one graph is copied to the same bar
on all the ranges. If you use this option, you can set the shape of the map at any range, and all
other ranges will be identical at every bar you adjusted. This feature enables all graphs to be
given an initial shape that should run the engine, albeit rather roughly. Once you have used