Nitrous Express Maximizer 2 User Manual
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MAXIMIZER-II rev A
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The purpose of this overview is to provide the user with some basic information about the installation
and configuration.
Note: The instructions in this manual take precedence over those included with other nitrous
accessories.
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Connect the MAXIMIZER-II's power to the same power source as the ECU (9~18 volts). Ensure the
fuse rating is sufficient to power both. (This power and ground need to be “clean” in order to obtain
the best performance from your MAXIMIZER-II).
DO NOT connect the MAXIMIZER-II's ground to the same place you grounded the SOLENOID
DRIVER.
DO NOT install a separate switch on the white power wire. The MAXIMIZER-II's power should be
controlled by the main ignition switch - see arming switch below.
Note: Powering up the MAXIMIZER-II while the engine is running may result in an inaccurate MAP
reading. (see MAP sensor input)
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The heavy black wire from the SOLENOID DRIVER must be connected to a good ground location
that can handle 40 AMPS.
DO NOT connect to the ECU ground connection. While pulsing the solenoids, this will generate large
amounts of electrical noise that can interfere with the MAXIMIZER-II or your ECU.
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Grounding the arming wire arms the MAXIMIZER-II. Connect the arming wire to one side of your
arming switch and connect the other side of the switch to chassis ground.
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If you are connecting to a stand-alone 4-wire O2 sensor, all 4 wires should be connected to the
sensor as identified on the Narrowband O2 Sensor wiring diagram.
For optimum performance and tuning capability, an FJO Racing Products (www.fjoracing.com)
Wideband AFR System Controller is recommended. It will enable the MAXIMIZER-II to accurately
display and log your air/fuel ratio. Using the IWC0004 power cable (purchased separately), the
wideband controller plugs directly into the MAXIMIZER-II without the need for a separate
power connection.
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The MAXIMIZER-II is designed to work with most Tachometer signals (down to 3 Volts), without the
need for a separate adapter.