Additional Inputs And Outputs - Holley Sniper EFI 550-510 Quick Start Manual

13. At this point you are ready to install the battery power and ground cables, these wires must go DIRECTLY to the physical
battery terminals.

ADDITIONAL INPUTS AND OUTPUTS

The following tables outline the functions of each wire on the Sniper harnesses. For detailed information, please see referenced
sections of the Sniper EFI Reference Manual included with your kit.
7 Pin Connector
Pin Color
E Red
G Black
C Blue
A Violet
B Dark Green
D Yellow
F Pink
10 Pin Connector – 8 wires are populated. This connector contains:
Pin Color
A Orange
B Yellow
C Light Blue
D Light Green
E Grey
F White
G Dark Brown
H Tan
I
NITIAL POWER-UP AND WIZARD
Turn the ignition key to the "run" position. This should apply power to the ECU as well as the Sniper EFI Handheld control
module. The handheld should power up and the Home Screen (figure below) should appear.
The Home screen contains icons which will navigate to different functional features of the 3.5 Touch Screen. These features will
be discussed in detail throughout the main manual.
Battery connections MUST physically go the battery!
Labeled Name
Battery Positive (+)
Battery Negative (-)
Fuel Pump Output (+)
Crank Signal Positive (+)
Crank Signal Negative (-)
Coil (-) Input
Switched Ignition (+12v)
Labeled Name
Input #1 (-)
Input #2 (-)
Output #1 (-)
Output #2 (-)
Output #6 (-)
Points Output
Tach Output
Digital Gauge Output
Function
Connects directly to battery positive terminal
Connects directly to battery negative terminal
+12v Fuel Pump Supply from Relay
Engine Speed Signal Input (see Ignition Wring Section)
Engine Speed Signal Ground (see Ignition Wiring section)
Engine Speed Input (see Ignition Wiring section)
NOTE: must remain powered during cranking
Function
Optional - Connect to a ground triggered A/C relay
Optional - Connect to a programmable ground input
Optional – Connect to Fan #1 relay ground trigger
Optional – Connect to Fan #2 relay ground trigger
Optional – Connect to ground side trigger of A/C shutdown relay
Used to trigger a CD ignition box or the included Coil Driver Module
Used to drive an aftermarket tachometer
Used to drive Holley EFI analog gauges via 554-130 Gauge Module
7