Haltech E6K - Manual (Page 38)

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Staged injection is usually used on high boost turbo engines. Injector Bank 1 fires all
the time, just as in a multipoint set-up. Beyond a set boost pressure, the second bank
of injectors is enabled. These "staged" injectors are normally upstream of the primary
injectors, adding to their fuel flow. The point at which the E6K switches in the
secondary injectors is set via the Staging Bar Number field. Staging permits high fuel-
flow capability, but maintains accuracy and controllability at light load and idle. See
Appendix D [D.3] for more details on staging.
In Advanced Mode, Sequential Injection can also be selected. This option is not a
straight-forward set-up. It requires more outputs for fuel than normally used. Before
selecting this option carefully read the section on sequential injection in Appendix B -
The Advanced Features.
WARNING:
WHEN FINISHED SETTING THE INJECTION MODE, SEE
CHAPTER 13.1
(INPUT/OUTPUT PAGE) TO SET THE INJ 1 - 4 DRIVERS TO THE
CORRECT STATE: ENABLED OR DISABLED:
THIS IS IMPORTANT AS THE ECU WILL NOT OPERATE
CORRECTLY IF THE INJ 1-4 DRIVERS HAVE NOT BEEN
CONFIGURED PROPERLY. AT WORST, SOME INJECTORS MAY
NOT FIRE OR THE INJECTOR DRIVERS MAY DESTRUCT AFTER
A PERIOD OF TIME.
Post Start Temp Limit
This field sets the temperature at which the post start correction map is either enabled
or disabled. The following field “Above/Below” sets whether or not the enabling is
corresponding to a temperature above or corresponding to a temperature below the
Post Start Temp Limit. From when the motor is started to when the engine
temperature reaches the Post Start Temp limit, the Post Start correction map will apply
correction to the injection times.
Post Start Time Limit
This field sets the time after start-up to when the post start correction map is disabled.
From when the motor is started to when the time reaches the Post Start Time limit, the
Post Start correction map will apply correction to the injection times.
Staging Bar Number
This field sets the point at which the staged injectors are enabled. See Appendix D
[D.3] for more details on staging. If the injection mode is not "Staged Injection" then
this field will not affect injection.
Zero Throttle Map
This feature allows the user to adjust a special fuel map that is used only when the
throttle is closed. This feature should be used for engines that produce constant
vacuum while cruising but irregular vacuum when idling. Typical engine
configurations that fall into this category are multiple throttle body set-ups and wild
cams. The zero throttle Map can allow a very quick and simple adjustment of the idle
fuel settings. This option can be disabled if not required.