Holley COMMANDER 950 - Manual (Page 23)

23
Figure 5 Engine Parameters Screen
Record your selection in the spaces provided.
__________Cylinders – Pick 4, 6, or 8
__________Port Fuel Injection or Throttle Body Injection – Select Multi-Port or Throttle Body fuel injection
__________Ignition Type – See page 63-64 (Appendix 1—Hardware Settings) FOR DETAILED INFORMATION if you are
not absolutely sure what type of ignition you have. If you have a computer-controlled (has NO mechanical or
vacuum advance) GM HEI (1981 and up), select “GM HEI”. If you have a Ford TFI, select “Ford TFI”. If you have
a Hall effect sensor connected, select “Hall Effect”. If you are connected to a magnetic pickup, select “Inductive
Pickup”. If you are not using timing control and DO NOT have a Capacitive Discharge ignition system, select
“Fuel Only (coil-)”.
__________Load Sense – Select “Speed Density” or “Alpha N”. See page 11 (Section 1.19) for information on these.
__________MAP Sensor – Select whether you have a 1, 2, or 3 bar MAP sensor. See page 8 (Section 1.10) for detailed
information on these.
__________Ignition Reference – See page 64 (Appendix 1—Hardware Settings) for the proper number. This is VERY
important that it be correct. It provides the ECU with information so that it knows when Top Dead Center (TDC)
will occur.
__________TBI Switch 2-4 and TBI Switch 4-2 – If you have a Throttle Body Injection System, see page 68-69 (Appendix
2—TBI Specific Tuning Information) to set this. This is important.
Setting these parameters will allow for the ECU to receive a RPM signal and fire the injectors. If the base map is
sufficiently close, the other parameters do not have to be changed to see if the car will start. They will be explained and
adjusted later.