The gray/white wire that painless provides is for the fan switch/relay activation. It's a 5 amp fuse for the low load the relay requires. Your fan should be powered by a #14 with a 20 amp fuse, which is not provided in the Painless harness.. The wiring should be as shown in the FFR manual, with the feed provided from the battery side of the starter solenoid through a 20 amp fuse, and the relay to the fan.
Fan Relay terminals:
#86 = signal (gray/white)
#85 = ground
#87 = 20 fused to battery+
#30 = to fan
The above setup provides constant fan operation thru the fan switch.
As an alternative, the Painless wire #904 is a 14 ga feed on the switched side of the fusebox. splice it to the #902 in the dash bundle, and you'll have your fan power in the engine compartment, as the #902 terminates there to run the AC compressor, which you probably don't have. Your fan will only run with the ignition switch on and the fan switch on. That way, you won't forget the fan on and kill the battery.
[ August 25, 2002, 12:53 PM: Message edited by: oldguy668 ]