Lingenfelter L460135297 Lingenfelter LNC-TC1 Torque Cut Module RPM Limit v1.1 - Manual (Page 12)

Page 11
Additional Notes
Important Information regarding spark plug wires and spark plugs:
You must use noise suppression ignition wires AND resistor type spark plugs with this
Controller. The LNC-TC1 controller contains High Frequency Digital Electronics and will NOT
function correctly without Noise Suppression Wires or resistor type spark plugs!
Nitrous, line-lock, trans-brake and other solenoid usage warning:
LPE has found that these solenoids can cause fly-back voltage levels at times in excess of 600
volts. These voltage levels have the potential to damage sensitive electronics including the LNC-
TC1, the PCM/ECM and other modules in the vehicle. LPE has developed a transient voltage
suppression (TVS) diode kit (PN L450080000) for use with line-lock solenoids, trans-brake
solenoids and other aftermarket automotive solenoids of this type. The TVS diode is a special
kind of diode used to suppress voltage spikes. LPE recommends the use of our TVS diode on
all vehicles that have a line lock or trans-brake. This kit comes with three TVS diodes, enough
for most common installations. If you have a vehicle with multiple solenoids we recommend
obtaining additional TVS diodes for those solenoids.
Install the TVS diode across the solenoid wires
as close to the solenoid as possible. Polarity
does not matter (Red and Black wires can go to
either solenoid wire). If there is no accessible
ground terminal to connect the diode to, such
as the case with a trans-brake solenoid, the
diode should be connected to the nearest ground
source. In the case of the diode for the trans-
brake solenoid, the diode should be connected
to the transmission case as it will provide a
ground path.
LPE recommends using TVS diodes on:
• Nitrous solenoids
• Nitrous purge solenoids
• Fuel solenoids
• Line-lock solenoids
• Trans-brake solenoids
Solenoid
TVS
diode