Haltech E8 - Manual (Page 46)

Haltech E11/E8 Instruction Manual
The following table is a recommended setting for Ignition Divide By values for various fuel injection
modes and typical piston engines.
Number of
Cylinders Mode of Injection Ignition Divide By Injections per rev (per
cylinder)
4 Multipoint 2 1
6 Multipoint 3 1
8 Multipoint 4 1
4 Batch 1 1
6 Batch NA NA*
8 Batch 2 1
*Note: 6 cylinder batch injection is not suggested.
• Fuel Scale factor - The Fuel Scale Factor is the overall scaling factor for the fuel injection times.
The allowable range is from 0% to 220%. A value of 100 is typical.
• Injection Angle - When sequential or semi-sequential injection is selected, the angle of injection
with respect to the combustion process can be programmed (fuel correction maps - end of injection
map). The angle in the maps can be used to determine when the start angle of an injection pulse,
or the angle at which the injection pulse will finish. By default, leave this set to End of Injection.
• Staged Injection Setup - See section Staged Injection for more details on how to setup staged
injection.
• Injector Trims - Injector trims allows you to adjust the fuel delivery between each individual
injector to account for any minor differences between injectors or fuel rail design. The trims allow a
maximum of
± 12.5% of injection time.
• Closed Loop Oxygen Sensor - Closed loop O2 control is used to improve economy, reduce
emissions and assist catalytic converter operation if you vehicle has one fitted. See section in the
tuning guide for more information on tuning the O2 parameters.
Over Boost Cut Out
• Enable - Click on this check box to enable over boost cut off. This is only applicable to forced
induction vehicles.
• Over Boost Cut - Fuel is cut when this boost pressure is reached.
• Over Boost Restore - Fuel is restored when the boost level falls back to this safe level. This value
must be set to the less than the Over Boost Cut value.
Fuel Pump Settings
• Invert Fuel Pump Output - Click on this check box to invert the output of the fuel pump control
wire, when this option is selected the fuel pump control output will be at ground when the pump is
not running and open circuit to run the pump. Rarely is this setting used.
• Fuel Pump Prime – Sets the time period the fuel pump primes for when the ignition first switched
to the on position.
Page: 46 Copyright © Haltech 2008