2 fuel set-up page – Haltech E6GMX User Manual

Page 29

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E6GMX Manual

29

Note:

The Aux. In field in the Input/Output Set-up page must be set to Dual Maps

Input. Refer to 4.2.5 The In/Out Set-up Page, p35


Enable with VTECH

This causes the ECU to use the primary base fuel and
ignition maps when the VTECH Output is inactive. The
ECU uses the secondary base fuel and ignition maps when
the VTECH Output is active.


4.2.2 Fuel Set-up Page


The fuel set-up page contains information about the fuel system. The Fuel Set-up Page is
accessed via the set-up menu.

The fields in the fuel set-up page are as follows:


Decel Cut Enable/Disable

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. It is better, when first tuning,
to disable this function.


Decel Cut RPM

This is the RPM above which the Fuel cut out will be applied.


Injection Mode

The ECU can operate in 2 different injection modes depending on the application
these are:

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).

Batch-fire injection is usually used in throttle body injected engines and fires the two
banks of injectors alternately. On eight and twelve injector fuel rails, with high-flow
injectors, this may also help reduce fuel pressure oscillations caused by all injectors
pulsing together.


Enable Injectors

This field allows the user to turn on all injector outputs. Turning this checkbox off will
disable all injector output which allows easy checking if the trigger and ignition
timing when cranking without having to locate the injector fuse and remove it.

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