Owners manual

PROGRAMING
13
Injector 1 and 2 Settings
Idle Air Fuel Ratio – Setting to add fuel at idle when in the idle RPM range. The Min RPM and Idle RPM limit
must be set for this function to work.
Example: If Idle Air Fuel Ratio is set to 14.7, minimum RPM set to 500 and Idle RPM limit is set to 1500, the ECI
will add fuel above (lean) the Idle Air Fuel ratio of 14.7 and in the range of the minimum RPM and Idle RPM limit
(500-1500 RPM).
Air Fuel Ratio – Setting to add fuel when above the idle RPM limit.
Example: If set to 14.7 and idle RPM limit set to 1500, the ECI will add fuel above (lean) Idle Air Fuel Ratio (14.7)
and above the 1500 RPM Idle RPM Limit.
Control Settings
Proportional Coecient - This value is the base fuel multiplier. It gets multiplied by the Air Fuel Ratio error to
decide how much fuel to add/remove.
Example: if this value is set to 10, Air Fuel Ratio target is 14.7 and Air Fuel Ratio actual from O2 sensor is 15.7
then: Fuel = 10 * (15.7-14.7) = 10% duty cycle.
Integral Coecient - This value is the error multiplier. If the fuel added/removed is still not enough to reach the
target Air Fuel Ratio, this value eects how much more fuel is added/removed.
Example: if 10% (duty cycle) fuel still is not enough to reach the target Air Fuel Ratio, more fuel would be added
based on this value. The larger the value, the faster it adds. The default value should be adequate for most.
Derivative Coecient - This value is this change multiplier. The larger this value, the more fuel it adds/removes
on sudden changes in the AFR. The default value should be adequate for most.
RPM Settings
Min. RPM – Minimum RPM the ECI will start adding fuel.
Example: If set at 500 RPM, the ECI will start adding fuel above this RPM and above (lean) the Air Fuel Ratio
setting
Idle RPM Limit – Maximum RPM the ECI will add fuel at idle.
Example: If set to 1500 RPM, the ECI will add fuel to this limit above (lean) the Idle Air Fuel ratio setting.
Advanced Features
Filtering Coecient – Controls how the sensitivity of the ECI. The larger the value, the less sensitive and
slower it responds to sensor input. If this number is too small, it may respond too fast and overcorrect.
Injector Frequency – The number of times the injector turns on. A larger number means more smaller pulses.
A smaller number is fewer and larger pulses. If the engine lopes at idle, increase this number.
First Start Parameters (Cold Start)
Start Delay – Delay before adding fuel during cold start.
Example: If set to 20 seconds, the ECI will add fuel for cold start ability 20 seconds after key on or switched 12
volts.
WARNING – If adjusting valves or working with key on, it is highly recommended you disconnect the
injector or disable the First Start Active function.
Run Time Warm – How long to add fuel when engine is warm. This works only when the temperature sensor is
connected and a value is set for the Warm/Cold Transition.
Example: If the Run Time Warm is set to 20 seconds, and the Warm/Cold Transition is set to 100° F, the ECI will
add fuel above 100°F engine temperature for 20 seconds. .
Note – If using a temp sensor, it cannot be shared with other gauges or data logging equipment.
It must be dedicated to the ECI. See wiring diagram if not using a temp sensor.
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