Mallory Ignition Mallory HYFIRE 6.6 SERIES OF ELECTRONIC IGNITION CONTROL 686m - Manual (Page 3)

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FIGURE 3
BASIC WIRING PROCEDURE
Step 1
Refer to Figure 2
Ensure that your vehicle is equipped with a ground cable
between the engine block and firewall (10 gauge or larger
is required). Locate the harness with the LONG RED WIRE
and one LONG BLACK WIRE at the end plate of the
HYFIRE® 6.6 Electronic Ignition Control.
• Connect the LONG RED WIRE to the battery (+) post or
battery (+) terminal on the starter solenoid.
• Connect the LONG BLACK WIRE to engine ground or
chassis ground.
• Plug into 2-pin connector with red and black wires
coming from the end plate on the HYFIRE® 6.6.
• Connect the Ignition Control Harness to the Ignition
Control Plug at the end plate of the HYFIRE® 6.6
Electronic Ignition Control.
Step 2
Choose one method listed below for wiring the HYFIRE®
6.6 Electronic Ignition Control (2a, 2b, or 2c)
(2a) Wiring method using Adapters and Harnesses
(sold separately)
Special wiring Adapters and Harnesses simplify the
installation of the HYFIRE® 6.6 Electronic Ignition Control
into newer vehicles. These adapters and harnesses allow
you to connect the HYFIRE® 6.6 Electronic Ignition Control
between the ignition coil and the factory coil connector.
They reduce installation time and wiring errors. Also,
converting back to the factory ignition is easy because
there is no need to cut the original wiring.
These instructions cover:
PART NO. 29042 – Connecting to GM HEI Systems
(coil-in-cap, with OEM ignition module)
PART NO. 29068 – Connecting to Late Model GM
HEI/EST Systems (external coil)
PART NO. 29062 – Connecting to Ford TFI Systems.
PART NOS. 29039 and 29040 – Connecting to Ford
DuraSpark Systems (non-computer type, without ignition
module).
PART NOS. 29040 and 29043 – Connecting to Early
Model GM HEI Systems (non-computer type, without
ignition module)
PART NO. 29040 – Connecting to Mopar/Chrysler
Electronic Systems (non-computer type, without ignition
module).
Connecting to: GM HEI Systems (coil-in-cap, with OEM ignition
module), use Adapter PART NO. 29042; Late Model GM HEI/EST
Systems, use Adapter PART NO. 29068; Ford TFI Systems, use
Adapter PART NO. 29062.
Connecting Adapter PART NO. 29042, 29062 or 29068
Refer to Figures 3, 4, and 7 when connecting to GM HEI
Systems; Figure 5 when connecting to Late Model GM
HEI/EST Systems; Figure 6 when connecting to Ford TFI
Systems.
• Match wires by color from the Adapter to the Ignition
Control Harness. Crimp all wires together.
• Disconnect the factory harness(es) at the ignition coil.
Connect them to the Adapter that has the RED and
GREEN WIRES.
• Connect the Adapter that has the YELLOW and BLACK
WIRES to the ignition coil. NOTE: When using an
aftermarket ignition coil with post type terminals, discard
the Adapter that has the YELLOW and BLACK WIRES.
Install ring terminals on the Ignition Control Harness
YELLOW and BLACK WIRES. Connect the YELLOW
WIRE to the ignition coil (+) terminal. DO NOT allow any
wire except the YELLOW WIRE to make contact with the
ignition coil (+) terminal. Connect the BLACK WIRE to the
ignition coil (–) terminal.
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FIGURE 2