Precision Turbo and Engine BigStuff3 GEN3 Engine Torque Management (ETM) System - Manual (Page 9)

Steps to Launching the Car with the 2 & 3 Step ETM
After the burn-out, flip on the DAE/DLTRIGR switch (requires 12V to activate) used
for the GEN3's data acquisition system. 12 Volts must be applied to this wire (the
DAE/DLTRIGR switch must be turned on) for the 2-step & 3- step to work! Go to
page 3 in this manual for more details.
If you already have the DAE option, use it as usual. If you do not have the DAE
option, use the DAE trigger wire that is supplied with the ETM upgrade kit (see photo
above)
Apply foot brake and press the throttle. At 25% TPS (required to activate) and 250
RPM below the value inputted into the “2 Step RPM Lo’” input box (in the BigComm
“Operating Parameter Configuration Table”), the rev limiter will begin to operate. If
the first 2-step doesn’t come on, make sure the ETM chip module is installed in the
MSD ignition box correctly. There is a red LED in the ETM module that will illuminate
if it is installed properly. The first 2-step wire runs from the ECU header 1, pin B2.
Requires 12V to activate.
12 Volts must be applied to the “2-step Enable” wire and
the “DAE Trigger” wire for the 2-step to work. Go to page 3 in this manual for more
details.
Creep the car forward into the staging beams and bring the second bulb on . Depress
the trans-brake button . This will activate the second 2-step (A.K.A. “3-Step”). Again,
at 25% TPS (required to activate) and 250 RPM below the value inputted into the “2
Step RPM Hi” input box (in the BigComm “Operating Parameter Configuration
Table”), the “3-Step” rev limiter will begin to operate.
12 Volts must be applied to the
2-step Enable wire and the DAE Trigger wire for the 2-step to work. Go to page 3 in
this manual for more details.
Once the trans-brake/clutch is released, the Timer Enable pin (Header, 1 L2) must
go high (it requires 12V to activate). The ”Timer Enable” wire must be connected to
a relay to invert the trans-brake signal (see wiring shown earlier). When the tans-
brake is released the timers begin to run. The boost stages and retards become
active as well as the TISS projected driveshaft speed curve.
See page 4 of this
manual for information on how to invert the trans-brake signal. The Timer Enable
wire does not need to be hooked up and active for the 2-step and 3-step to work, but
the staged boost control will not function without 12V to the Timer Enable wire.
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