Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI (LS1) System Hardware & BigComm Software - Manual (Page 27)

BigStuff3 Pro SEFI System (LS1)
Version 1.0 26
If the GEN3 ECU is not powered up (the ignition key is not in the “Run” position) and the
Communications cable is not connected, communication cannot be established. The following
screen will appear. This may also occur if the Comm Port is not configured correctly. If this
occurs, use the above process of configuring the Comm Port until communication is established.
Left mouse click the Work Offline button. The BigComm software will ask what calibration
should be used “off-line”. The following screen will appear, informing the user that a calibration
file must be loaded to work “off-line”.