Holley COMMANDER 950 - Manual (Page 16)

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3.0 SKILL LEVEL REQUIRED
Installation of the COMMANDER 950 intake system and the ECU requires approximately the same level of skill and
experience to replace or service an induction system consisting of a carburetor and conventional intake manifold (as well as
basic wiring skills for the installations of the ECU).
Tuning of the system requires basic computer skills and a basic knowledge of engine and fuel injection principles. The
information needed to tune this system is included in this manual. Read it thoroughly.
Tuning your EFI system is an ongoing project, until you get it dialed in for all conditions. Be patient.
NOTICE: If you are not absolutely certain that you have the skills and experience required to perform these
procedures, we strongly recommend you have this system installed and tested by a technician with
specialized training in EFI and fuel systems service.
4.0 TOOLS REQUIRED FOR INSTALLATION
The following is a list of materials, which may be needed, depending on the application.
q Laptop PC with Windows 3.1, 95, 98, or NT and serial communications port (minimum graphics required=800 x 600)
q Digital Volt-Ohm meter
q Screwdriver set
q Drill and assorted bit sizes
q Hole saw (2”) or Greenlee punch
q Timing/Advance Light (Dial back recommended)
q Standard wrench set
q Standard socket set
q Fuel pressure gauge
q Wire terminal pliers
q Electrical tape
q Zip ties
q 14 gauge wire
The following is a list of parts that may be required to complete this installation (dependent on the application).
q 534-138 GM small cap HEI adapter (included with MPI kits)
q 534-139 Ford TFI adapter (included with 5.0L Ford kits)
q 538-13 Two bar MAP sensor
q 538-23 Three bar MAP sensor
q 840-110 Crank Trigger required for LT1 engines
q 800-501 DIS system required for LS1 engines
q 534-136 Knock Sensor wiring kit
q 534-134 Cooling Fan Relay kit
q 534-135 Crank Trigger wiring kit
5.0 ELECTRICAL CONNECTIONS
Proper installation of the wiring harness and all electrical connections are critical for proper and reliable
operation of any EFI system. Damage to the ECU can also result from improper wiring.
Wiring diagrams are provided for reference during connection of electrical components. These diagrams shows the
connectors included with the wiring harness and table shows the color codes and connections for all of the loose wires without
connectors. See Appendix 10 for the wiring harness diagram.
NOTE: Some of the wiring schematics include wiring for optional kits. This is the cooling fan relay kit. Cooling relay kits
can be purchased separately.