JWT Nissan Single Fogger Nitrous Oxide System Installation Instructions

This SYSTEM CONSISTS OF A CONVENTIONAL solenoid operated nitrous oxide spray nozzle. However the supplemental fuel is not added by a separate fuel spray nozzle, as with most conventional N2O systems. Older conventional systems sprayed supplemental fuel through the intake manifold along with the nitrous oxide, requiring the addition of a extra solenoid, line and fuel source. Most fuel injected engines have intake runners that are designed to run "dry" and will not distribute fuel droplets evenly, causing some cylinders to run dangerously lean during nitrous usage. Our system uses the original fuel injectors to deliver the additional fuel needed to run the system. A custom module inside the E.C.U. (engine control unit) has been installed that switches between two programs. Program #1 is our normal performance program, used when nitrous is not flowing. Program #2 is used for controlling the engine when the nitrous system is operating. This program is calibrated to deliver additional fuel and control ignition spark timing. Program #2 is activated only when the nitrous arming switch is on and the throttle has been fully depressed. There are three new wires coming from the E.C.U.. One wire (top of the "T" plug) is 12 volt + supplied from the E.C.U. to power the relay and nitrous solenoid. The second wire (lower leg of the "T" plug) is the signal wire from the E.C.U. that operates the relay to turn on the nitrous solenoid. The third wire is a shielded wire pair with the arming switch on the end, this must not be modified and the shielding must re- main bolted to the ECU as received.

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