Nitrous Express POWERSPORTS SYSTEMS WITH ELECTRIC INLINE FUEL PUMP 877-648-7687 User Manual

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of one of two things. Either the throttle was moved while it was calibrating the idle position or the
TPS signal is not stable. Check wiring and recalibrate.

PROGRAMMING a TPS Wide Open Throttle Module with one LED
The TPAS is designed to trigger a relay, 1 amp maximum current draw, at or near wide open throttle and
automatically calibrates itself to work with rising or falling signal.

1. The NX TPS Wide Open Throttle Module should be mounted in a place that it will be easy to

access the learn button and view the LEDs. Make sure the unit is located away from any heat
source, i.e. exhaust manifold, header, or EGR

2. Following the wiring diagram, route all wires but make no connections.
3. You must determine which wire on your vehicle’s TPS is the output signal to the vehicles

computer. Refer to your vehicle’s service manual to determine which is the output wire.
Connect all the wires as shown in the diagram. When the switch is wired you will need to
turn the key to the on position, it is not necessary to start the vehicle. Now if the switch has
never been programmed the GREEN LED will blink fast. If it has been programmed it will be
ON. Either way the switch needs to put in learn mode.

4. This switch works with rising or falling TPS signal as long as it has at least a 1v deviation

between idle & wide open throttle. When in learn mode, the unit first does a 5 second idle
signal analysis. If too much signal noise is found, it flashes an error (this is to catch a bad
TPS or when connected to wrong wire).

5. Once the switch is wired according to the schematic, you will need to put it in learn mode.

Learn mode is achieved by pushing and holding the button for 3 seconds, at which point the
GREEN LED on the switch will blink slow. This tells you it is checking the TPS idle voltage.
This takes approx. 4 seconds. DO NOT change the throttle position during this time. Once the
GREEN LED turns off you can proceed. 6. Now take the vehicle to full throttle and back to
idle two times. If the GREEN LED is ON solid, then your TPS is set. If the GREEN LED is
flashing, the TPS Switch detected a variation between the 1st and 2nd full throttle position
and as a a precaution, did not learn that setting. You will need to turn off the switch and start
the learn procedure again. If the GREEN LED is still OFF, the TPS signal range may be too
small or you have the switch connected to the wrong wire. NOTE: Once the switch has
learned your full throttle position, the GREEN LED will be ON whenever the switch has
power and the RED LED will be on when the switch sees full throttle

When using a Mechanical wide open throttle micro switch When using an electronic wide open throttle module

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