Nitrous Express 2 Dial Progressive Controller (15835) - Manual (Page 10)

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7.0— Testing Controller Operation and Trouble Shooting
The controller operation can be tested with the vehicle engine OFF, Nitrous Fuel
Supply OFF, and the Nitrous Supply (bottle) OFF. Never test the system with Fuel and
Nitrous Supply ON, this will fill the non-running engine and can be very destructive to
engine components and personnel when it is started the next time!
After insuring that all supplies are OFF, turn On the Nitrous Arming Switch.
Depress the Throttle (or activate throttle switch manually) to activate the controller. If
the controller is set for 0.0 build time the solenoids should snap open immediately. Any
other setting will pulsate the solenoids for the build time setting and then the solenoids
will go to full power.
The Red LED Lamp will be on solid with the controller On and NOT activated.
When the activation signal is applied the LED Lamp will blink. This can be used to
check for proper activation signal.
If the controller has been installed for Hold and Wait Timer releasing the throt-
tle switch will stop the solenoids. When the throttle switch is applied again the control-
ler will resume at the point it was stopped at (provided the internal 20 second has not
elapsed). If the internal 20 second timer has elapsed before the throttle is released the
solenoids will be turned OFF until the activation signal is released and reapplied.
If the controller has been installed for Reset with Activation Signal releasing the
throttle switch will turn off the controller and the solenoids. When the throttle switch is
applied again the controller will begin the Nitrous Power Ramp from the start percent
setting. If the internal 20 second timer has elapsed before the throttle is released the
solenoids will be turned OFF until the activation signal is released and reapplied.
Trouble Shooting Incorrect Controller Operation.
1 - Engine Running Rich while using Progressive Nitrous
A - Starting Percentage to low for a given bottle pressure and solenoid
combination (only fuel solenoid opening).
B - Fuel pressure to high for fuel solenoid to operate correctly when pulsating.
2 - Nitrous seems to Delay after Activation
A - Improper Nitrous Jetting, Fuel Jet to rich. Some vehicles will run rich
with the Nitrous Controller installed due to the Fuel being slightly richer
at low percentages.
B - Starting Percentage to low for a given bottle pressure and solenoid
combination (only fuel solenoid opening).
3 - Nitrous Turns OFF during operation
A - To much current draw from solenoids. System fuse-circuit breaker may be
overloaded. Controller will limit amperage to the solenoids if an over current
condition is detected. See specifications for maximum ratings.
B - Electrical interference from Ignition System or other Electronic Device(s)
causing the controller to lock up or turn off.