Haltech E6M - Manual (Page 37)

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4.3 Using the Software
In order to make the software easy to use, the program presents you with a menus bar at the
top of the display. The menu bar is accessed through simple combinations of keystrokes.
Once the appropriate menu has been accessed a sub-menu appears giving choices on
available page heading. To increase efficiency there are also a number of hot-keys that allow
you movement between pages without accessing the menu bar.
Note: When two keys are displayed together, such as
ƒρ
, this means that the
second key must be pressed while the first key is held down. In this case, the
ƒ
key would be held down while the
ρ
key is pressed.
4.4 Accessing the fuel maps
Pressing
ĵ
will take you to the Maps Menu. From the Sub-menu choose the fuel maps
option by using the cursor keys to move the highlighted bar or pressing the underlined letter
of the option required, in this case
Φ
. This will produce a further sub-menu that will allow
you to choose a range to be viewed.
4.4.1 Fuel Set-up
The Fuel Set-up works in an identical way to the Identification. It’s fields are different and
relate to the way the fuel is delivered to the engine. Enter the Fuel Set-up by pressing
ƒσ
and then by pressing
Φ
key. The fields in the Fuel Set-up are:
Ign / By
Ignition Divide By is the number of ignition pulses that will be counted until the next
injection pulse. For almost all multipoint systems, injection should occur once per
revolution and so Ignition Divide By should be set to half the number of cylinders. If
the system is operating in Batch Fire or Sequential mode, or is a rotary, then a value of
1 is suggested.
Decel Cut-Off
A common fuel saving feature in original equipment computers is a fuel cut-off on
deceleration. This will cut fuel delivery to the engine while coasting down hills with
closed throttle. This feature can be enabled or disabled on the E6H/E6M. It is better,
when first tuning, to disable this function.
Injection Mode
Depending on the ECU settings the E6H/E6M splits its injector driver outputs into two
banks (see chapter 13, 13.1). INJ1 and INJ2 form the first bank. INJ3 and INJ4 form
Bank 2 (refer to the wiring diagram at the back of this manual.) In Basic Mode, Fuel
can be injected in three different modes.
Multipoint injection fires all the injectors together. This is the most common set-up
and will normally be used on engines with multipoint injection manifolds (one injector
per cylinder).