Points – Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI System Hardware & BigComm Software User Manual
Page 15
BigStuff3 Pro SEFI System
Version 2.1 – February 2011
13
Fan Control (engine cooling fan) – (Single lead Packard connector with a single black with red
stripe wire)
This termination must go to the negative side of a fan relay, not directly to the fan. Terminating this
connection directly to a fan
will damage the BigStuff controller and will void the warranty!
The
fan connector is identical to the fuel pump connectors; so make sure to read the label to ensure the
connector is terminated correctly.
Wire the fan relay per the diagram below. This diagram is also available on the Bigstuff3 website via
. The fan pump relay is
not supplied with the system. A standard 40 Amp, four post relay, available at most part stores will
work.