Nitrous Express ELECTRONIC FUEL INJECTED C7 PLATE SYSTEM - Manual (Page 7)

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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
NOTE: On all vehicles equipped with factory rev-limiters should take extreme care not to over-rev the
engine. If the rev-limiter is engaged with the N2O system on, serious engine damage could result. An
aftermarket RPM window switch (NX PN# 18959) should be used to disengage the N2O system 200
RPM’s before the rev-limiter activates.
WIRING DIAGRAM
TESTING THE SYSTEM
At this point both solenoids should be tested for proper operation. Note: (Be sure the nitrous bottle is off
and there is no pressure in the N2O supply line). If you are using a fuel safety pressure switch you must
use a jumper wire between the NO and C terminals when testing the solenoids. To test, turn on the
vehicles key but do not start the engine. Turn the “arming” toggle switch to the ON position and push the
accelerator pedal to the floor. A clicking sound from the solenoids should be heard as the gas pedal is
pushed on and off past 80% throttle. IMPORTANT: Make sure that both of the solenoids are clicking! If
no sound is heard or only one of the solenoids is working, check all wire connections and the wiring
schematic for proper connections. Note: The nitrous and fuel solenoids are rated only for intermittent