Lingenfelter NCC-001, Installation And Operating Instructions Manual

Page: 106 / 171

Lingenfelter NCC-001 Nitrous Control Center Installation and Operating Instructions 105
7.8 AFR Setup Menu
The following options are found in the AFR setup menu, which can be accessed by the "SETUP" button on the
main screen of the controller or through the Air-Fuel Ratio tab in the setup menu of the computer software. The
Air-Fuel Ratio can be read into the NCC-001 and logged. The AFR signal must be a 0-5 volt linear signal.
This feature can also be used as a safety feature to disable nitrous. By enabling the AFR option, the O2
wideband controller can be used to detect a lean condition. The controller can then disable the nitrous
accordingly.
AFR Option
By enabling the AFR option, the 0-5 volt output from an O2 wideband controller can be used to disable the nitrous
system if a lean cylinder condition is detected.
Access from the Controller:
From the Main screen , press the “SETUP” button. Press the “DOWN” arrow button repeatedly until the AFR
Setup Menu selection is highlighted and then press the “ENTER” button. Press the "ENTER" button to select the
"AFR Option", then the “YES” or “NO” button to change the current selection. If the “NO” button is pressed no
change will be made.
Access from the Computer Program:
From the Status screen , press the "SETUP" button. The "AFR Nitrous Disable" option is found under the "Air
Fuel Ratio" Tab. Click "ON" to disable the AFR Nitrous feature or "OFF" to Enable the feature.
AFR Nitrous Oxide Disable
This setting determines the Air Fuel Ratio at which the nitrous system is disabled due to a lean condition. A
setting of 0.0 will disable this feature. This setting is used along with the AFR Delay and AFR Disable Percent
settings.
The Valid Range is 0.0 to 20.0 in .1 increments.
Access from the Controller:
From the Main screen , press the “SETUP” button. Press the “DOWN” arrow button repeatedly until the AFR Setup