Fan Relay and Fuel Pump Relay, doc, whats this wire? :) Options

[jcbass7]

After searching i have not quite yeilded the answers i need..

My swap is done, but my fans are wired to run all the time.
what can i do to make them come on and off at a certain temp?

should i buy a kit like this:
Two's R Us Fan Relay and Thermo

or can i figure it out without dishing out the cash?




Fuel pump relay... do i need to do anything with this? I think its on all the time, should it not be? etc. i don't want to burn the pump out.. its an SW20 pump and i usually run around 45-48psi on average when driving.

This post has been edited by jcbass7: Jan 31, 2007 - 7:51 AM

[Dr_Tweak]

You know... I've greatly improved my techniques over the past few months and I don't use the same method to do the conversions anymore.... but I'm 99% sure that you do NOT need that wire hooked up. Disconnect it and let your engine warm up (keep a close eye on it) and see if the fans come on.

I'm pretty sure that the green wire goes to the CF pin on the GT ECU (the 3SGTE ECU doesn't have this pin), which I used to think was the wire the the ECU used to switch the fan on. However, I now know that the green wire only notifies the ECU that the fan is running, and it will work normally without it, since the temp switch is located on the radiator itself.

Which makes me want to look at the diagrams and figure out why the fans run with 12v going to that wire!

-Doc

This post has been edited by Dr_Tweak: Jan 31, 2007 - 8:59 PM