Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI (LS1) System Hardware & BigComm Software - Manual (Page 67)

BigStuff3 Pro SEFI System (LS1)
Version 1.0 66
37. After Start Correction
As outlined above, the ECU delays the introduction of After Start Correction fuel once the
engine starts.
The table below allows the user to define the amount of After Start Correction fuel to be added
as a function of coolant temperature. The After Start Correction fuel is added synchronously
as a percent (%) of the base pulse width (defined in the Fuel table). As you will notice in the
table, the percent (%) of fuel added is greater at the two temperature extremes. The largest
amount of fuel is needed when the engine is coldest. A larger amount of fuel is also added when
the engine is hot versus the mid range temperatures, to release any vaporized fuel that may have
“boiled” in the fuel rail(s) during a hot soak.
While the engine is running, a “real-time Ellipse” will move within the After Start Correction
table relative to the current engine coolant temperature “operating point”. Use it as a point of
reference to help calibrate the After Start Correction table.
To change a value in the After Start Correction table, move the cursor using the PC’s mouse or
arrow keys to the cell to be changed. Input the desired value and hit “Enter” to save the change.