User Manual

CONNECTING THE ACCEL TIMING COMPUTER
TO AN
ACCEL IGNITION SYSTEM
he ACCEL TIMING COMPUTER uses special signals to communicate with your ACCEL+
gnition, and
DIP-Switch-4, inside your ACCEL+ ignition module, must be pushed UP.
• Open the A
CCEL+ ignition’s cover plate (the one with the wires coming through it).
Unscrew the screws and swivel it out of the way to reveal the
DIP-S
witches.
• Using a small tool (A pencil is good) gently push up
DIP-Switch-4.
DIP-Switch-4
This A
CCEL
300+ ig
nition box has been
set to rev-limit an
8-cylinder
engine at 5,000
RPM.
When connected to any A
CCEL control
module,
DIP-Switch-4 must be pushed UP.
When not connected to a module push
DIP-Switch-4 DOWN.
When not connected to an A
CCEL
control module your ACCEL+ will
not start with
DIP-S
witch-4 UP.
• After you have set dip-switch-4,
close the cover and retighten all
three of its screws.
you move your A
CCEL TIMING COMPUTER to a different car, or make significant changes
o your engine, you probably will also want to change most, if not all, of its stored values.
may be a good idea to treat any major engine change as a brand new installation, and
eprogram your Timing Computer from the ground up.
eep a good record of what values were used, when, and why! These records will be very
aluable, saving both time and parts, if and when you make more changes.
1. With the unit powered off press and hold
down both the SAVE and RPM buttons.
2. While holding both buttons down, apply power to the Timing Computer.
It will display a number that represents the number of cylinders in an
engine (
the factory default is 8).
3. Use the
⇑
and
⇓
keys to select the number of cylinders for your engine.
4. When finished, press SAVE. This stores this new information and puts
the module back into Control Mode operation.
If you do not make this selection your
Timing Computer uses the factory default.
Make this selection only once per installation.
SELECTING THE NUMBER OF CYLINDERS