Tps configuration, How to set max tps % for idle, How to set clear flood tps – Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI (LS1) System Hardware & BigComm Software User Manual
Page 34: Rev limiter configuration, Tps_configuration, Rev_limiter_configuration
BigStuff3 Pro SEFI System (LS1)
Version 1.0
33
TPS Configuration
This input screen allows the user to set:
• The TPS sensor to the correct output voltage when the throttle is completely closed.
• The Clear Flood TPS %, described later in this section.
Note: It is important to have the TPS (%) setup correctly. The TPS sensor (on the throttle
body) and software need to be setup properly to ensure that the full resolution (0% to
100%) of the sensor can be utilized and the following related features function properly
(described later in the manual):
• Idle Spark Control - See
• Decel Fuel Cutoff (DFCO) - See
How to Set Max TPS % for Idle
Note: Make sure that the correct type of TPS (GM or Ford) was selected during the hardware
configuration process outlined above. See
In the input table set the “Max TPS % for Idle” at 2%. Next, go to the TPS sensor located on
the throttle body. With the throttle blades completely closed and with the engine running at its
normal operating temperature and preferred idle speed, adjust the TPS so that the TPS = % value
shown in the Dash reads between .5% to 1%.
The dashboard can be configured to appear at the bottom of most of the BigComm software
screens. An example of a dashboard is shown below. See
later in this manual).
How to Set Clear Flood TPS %
Set the Clear Flood TPS % value at 80%. This setting tells the ECU not to add fuel when the
following conditions exist.
o
The engine is cranking (between 75 and 400 RPM).
o
The throttle position is at 80% or greater (user specified)
If these conditions are met, the ECU does not add fuel. This function is especially useful when
attempting to start a flooded engine. Once the fuel is cleared from the engine, release the throttle
to restart the engine.
Rev Limiter Configuration
This input screen allows the user to set the maximum engine RPM before fuel shutoff occurs.
This setting is referred to as “Rev Limit On RPM”. The screen also includes an input for “Rev
Limit Off RPM,” which is the RPM where fuel will be reintroduced to the engine. A small
RPM band (at least 200 RPM) is required between the “Rev Limit On” and “Rev Limit Off”
TPS Signal in the Dash.