18
Main tables
Main table by MAP: this mode is indicated for turbo or naturally
aspirated engines.
because, the engine vacuum varies under different loads, even with the
throttle on the same position.
TPS compensation is available on fuel and timing maps.
Main table by TPS: this option is mostly used on naturally aspirated
engines with aggressive camshafts, when this causes the vacuum on idle and
under low load conditions to be unstable.
When this option is selected, MAP compensation is available for fuel and timing maps.
TPS idle fuel injection table:
This is the mode the fuel injection on idle speed will be controlled. When enabled, a table that relates injection
time versus engine RPM is activated whenever TPS is equal to 0%. Enable this feature on engines with high
profile camshafts and unstable vacuum on idle.
For street cars with stable vacuum on idle, it is recommended to keep this feature disabled. In this case,
injection time for idle will be set up directly on the vacuum ranges on the main fuel MAP.
Accel fuel enrichment: use this parameter set up as TPS always when
possible, as this sensor is faster than the MAP sensor to indicate a quick
change of position in the throttle.
RPM for engine start: set up a RPM limit above which the start-up routines
are disabled. Below this RPM, all the injection, ignition and actuator
positions set up for engine start are used.
7.2 RPM signal
RPM signal is the most important information to run the engine properly. This
menu is where the RPM input will be set up.
Engines with crank trigger: select the crank trigger pattern.
Engines with distributor: Hall Effect and magnetic distributors are compatible with this ECU. The signal input
configuration must be done according to the number of pick-ups/windows on the distributor.
Engines with crank trigger/distributor (1 ignition coil): In this case, the ECU reads a crank trigger on the crank (or at
the cam), but the ignition distribution occurs on a distributor, through a single coil. In this case, the RPM Signal
configuration remains the same as engines with crank trigger and multi c
distributor. That enables only the ignition output #1. The other outputs stay disabled and unused.
To Next Page
Loading...