Quote:
Originally Posted by yzf-r1
My biggest concern is draining the battery running the fans that long...
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Just to confirm...running the wire lead to ground will cause the fans to run 10 minutes after the ignition is turned off but only if a threshold temperature is reached on the engine (can't recall now exactly what it is). So you don't have to worry about the fans running EVERY time you start your car.
As mentioned, if your battery is good there should be no problem and it does help a bit with underhood temps in the summer. Before moving to a PFC I used it for several years (through a switch so I could disable in cooler times) with no issues.