13.31
ELECTRICAL
• Flashing light on the instrument panel indicates that the
system is in reverse. On carbureted units a slow flash
indicates that the system is set for low elevation, and a
fast flash indicates the system is set up for high
elevation. Push and hold the reverse button for longer
than 5 seconds to toggle back and forth from high and
low elevation settings. On Cleanfire units this is
automatically done through the engine controller unit
(ECU).
• Elevation above 6000 ft (1829m) requires a different
timing curve to eliminate a “kick-back” effect.
• If engine is shut off or dies in forward or reverse gear,
the engine when started will automatically be in
forward gear.
• When servicing clutches, ensure that the vehicle is in
the forward gear.
DIGITAL WRENCH
CONNECTIONS
DIAGNOSTIC PORT
The diagnostic port is used with the Digital Wrench diagnostic
program. The communication cable hooks to this port to
communicate to the ECU when powered up with the power up
port.
ECU POWER UP PORT
The power up port is used to give the ECU power so that the
Digital Wrench can communicate with the ECU. To power up
the ECU use the M-10 ACE power cable (PN PV-46355)
DIAGNOSTIC PULG FOR LIGHTS
Apply 12 VDC to this plug by using the M-10 ACE tool (PN
PV-46355) and it will power up all the light circuits. This is
helpful for checking any grounds for lights.
FUEL PUMP PRIME
Applying 12 VDC to this by using the M-10 ACE pig tail tool
(PN PA-46355-2). This will cycle the fuel pump and
pressurize the fuel rail. Apply positive (+) power to the RED
wire and the negative (-) to the BROWN wire. This will be
used when priming the fuel pump after engine rebuild.
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