5 – DP 9002 Intellitronix (rev. 09/10/2020BB) www.intellitronix.com
Tachometer – Green wire – Connect the wire from the tachometer to the negative terminal of the
coil or a direct tach output lead from your distributor or electronic control module. If you are using
an aftermarket capacitive discharge ignition system, such as an MSD, you must use the designated
‘tach output’ connection on the electronic box. Do not make any connections directly to the coil
with this type of system. With high output Ignition systems may also create frequency noise that
may interfere with operation of gauges that may require a tachometer filter.
If your vehicle has a GM HEI ignition, connect to the terminal marked ‘TACH’, or, on some
systems, a single white wire with a spade terminal.
If your vehicle has a magneto system, connect the tach signal wire to the negative side of the coil.
Do not connect the tach terminal to the positive (+ or high voltage) side of the ignition coil or may
need a Tachometer adapter for proper operation of your Digital Gauges.
Diesel engines will require a Diesel Tachometer adapter for proper operation of your Digital
Gauges.
PROGRAMBLE TACHOMETER SETTINGS
To change settings:
The display will stay in Settings Mode until it receives a signal from the ignition system. To
program the unit after starting the engine, shut the engine off and turn on only to the accessory
position.
When in accessory mode, the settings menu will scroll through the settings menu. A light tap on
the button engages the menu system.
1. Sets # of digits in RPM display, using button, display shows: (hundreds) 8800, (tens) 8880, and
(ones) 8888.
2. Sets # of cylinders using button, display shows: 1cy, 2cy, etc.
3. Sets first digit on max RPM on gauge bar display (in thousands) using button, display shows:
1000 to 9990.
CALIBRATION
Note: If using the Intellitronix GPS Sending Unit, (S9021 – not included) the speedometer does not need
to be calibrated.
The speedometer leaves the factory with a pre-set industry standard setting of 8,000 pulses per
mile. Chances are that you may not need to recalibrate your speedometer, unless you have
changed the original tire size or the rear end gear ratio.
Note: Do not attempt to calibrate your speedometer until after it is working properly and you have determined
that the speed is incorrect. The calibration procedure will NOT correct a faulty installation or improper wiring.
If you attempt to recalibrate your speedometer without making sure the speedometer is receiving pulses from
the sending unit, the speedometer will display ‘Err’ and default back to the factory settings.
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