Tuning For Idle (ignition)
Typical idle speeds usually sit between 500 RPM and 1000 RPM. In order to assist the idle control mechanism to achieve a steady engine speed, it is advisable to ensure that the ignition advance at the idle loads between 500 and 1000 RPM are similar, if not the same. It can be helpful to actually have the advance of the 500 RPM range to be slightly higher than the advance at 1000 RPM, so that as engine speed dips, the increase in ignition advance tries to raise the engine speed. This will help the engine to find a stable equilibrium.
Tuning for Idle (fuel)
The idle mixture is very sensitive to changes in injection time. Idle injection times are usually around 1.5 to 2.5 ms. If the injection time at idle is much lower than this, it may become difficult to set accurate idle and cruise air/fuel ratios. ...
Idle Control Tuning
Idle Control is used to hold the RPM steady while off the throttle. To do this the ECU needs to be controlling a device that regulates air flow into the engine. This can be via DBW throttle control, a 2 or 3 wire solenoid, or a stepper motor valve. ...
The Transient Throttle tables should be set up after the fuel and maps are correctly tuned for steady load running. Attempting to smooth out engine transients before the fuel maps have been optimised for steady state running may become confusing. ...
Tuning Base Tables
Tuning Method Injection Time The fuel table contain the base injection time for the given load and RPM at which the engine is operating. The base fuel map has the greatest influence on the air/fuel (A/F) mixtures. With injection time tuning, you ...
The Elite Series ECU's cannot control the ignition coils directly. Some sort of ignition amplifier such as a power transistor, Haltech ignition module or high intensity spark unit (CDI unit eg MSD 6A, crane HI6, M&W pro12 etc) must be used to ...