Post by
300Plus »
https://forums.nicoclub.com/300plus-u30494.html
Tue Jul 22, 2008 9:20 am
one you should read how to wire up efans using relays. its really simple and cheap. and on top of that use a temp sensor or thermo to trigger the fans, as it is easy to forget to kick the switch off and over heat the motor.
and if this idle problem only happens when the fans are on, then I would think its caused by the additional pull on your alternator and in that case a small increase in idle wouldnt be a bad idea. But if this problem happens without the fans being on then that won't fix it.
Like someone said you must have unplugged a sensor, cut a wire, or maybe the power wire you ran into the cab is grounding out somewhere like on the firewall where it enters the cab...