Need help dual electric fan EEC-IV relay wiring - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 7 Old 06-18-2014, 11:14 PM Thread Starter
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Need help dual electric fan EEC-IV relay wiring

I have a 93 Cobra with the factory fan & radiator setup which we all know is a weak point. I recently bought a Contour dual fan setup from 88lxcoupe on here, and a champion 2 row radiator. Attached is the diagrams with 30 amp fuse hooked to Pin 41 on the computer. That I can do, however this is a DUAL fan and I'm not sure if this will work for dual fans or only for 1 fan. Any help is welcomed to assist me in finishing my install.

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Current: 2013 SVT Raptor Sold: 93 SVT Cobra Vortech
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2006 GT Full Cervini C-500 Kit w/Hellion Kit
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post #2 of 7 Old 06-19-2014, 08:21 AM
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im not familiar with what the purpose of the pin your wanting to tap into, but im using the same contour fans, i used two 70 amp relays wired independantly for each fan, each has its own main power feed with 30 fue for each, right now ive got the trigger for each relay coming from a single switch, but when my stinger PiMP gets here, it has outputs to control two fans and i will have it triggering the relays as needed.


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post #3 of 7 Old 06-19-2014, 12:51 PM
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The pin only turns on a relay, so it's the relay that needs to be strong, not the pin.

Like it says, don't wire the pin directly to the fan.


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post #4 of 7 Old 06-19-2014, 12:56 PM Thread Starter
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Yes understood, my question now is with these dual fans what size relay to use. The info on the internet on these contour fans is all over the map from 40 amp to 80.

Here is where I am now. I am using the emissions plug on the left hand side rear of engine bay with 1 red wire ( ignition on hot) & 1 White with Green stripe ( going to the ecu connector). I will remove the white w/green tracer from pin 32 which is right next to my thumb nail ( where I believe it currently lives) and reinsert at pin 41( currently open) for my tuner to add to my tune. Next is the fan/radiator install and wire up.......Just need to figure out what size relay for both fans, I want to use only 1 relay.
I'm looking at this as the relay and in-line fuse:
http://www.amazon.com/gp/product/B001CMZAX2/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DERhttp://www.amazon.com/gp/product/B000A8MISO/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER

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Originally Posted by terryr View Post
The pin only turns on a relay, so it's the relay that needs to be strong, not the pin.

Like it says, don't wire the pin directly to the fan.
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File Type: jpg photo 1.jpg (71.7 KB, 9 views)
File Type: jpg photo 2(1).jpg (53.9 KB, 6 views)

Current: 2013 SVT Raptor Sold: 93 SVT Cobra Vortech
2007 GT500 2.9L Whipple
2006 GT Full Cervini C-500 Kit w/Hellion Kit
1990 GT 1st Generation Hellion Kit
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post #5 of 7 Old 06-19-2014, 06:49 PM Thread Starter
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So I removed the White with green tracer from the ecu harness and put that one in Pin # 41. I used my multimeter to test the wire on both ends to make sure it's the same wire and it is, so hopefully all I need to do now is wire up the fan and take it to the dyno
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File Type: jpg photo 1.jpg (71.1 KB, 3 views)
File Type: jpg photo 2(1).jpg (50.9 KB, 4 views)
File Type: jpg photo 3(1).jpg (57.5 KB, 3 views)

Current: 2013 SVT Raptor Sold: 93 SVT Cobra Vortech
2007 GT500 2.9L Whipple
2006 GT Full Cervini C-500 Kit w/Hellion Kit
1990 GT 1st Generation Hellion Kit
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post #6 of 7 Old 06-21-2014, 02:40 PM
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Quote:
Originally Posted by ctozzi View Post
Yes understood, my question now is with these dual fans what size relay to use. The info on the internet on these contour fans is all over the map from 40 amp to 80...
Bosch 75A relay, 0-332-002-156

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post #7 of 7 Old 06-21-2014, 03:26 PM Thread Starter
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Quote:
Originally Posted by Blown88GT View Post
Bosch 75A relay, 0-332-002-156
Thanks

Current: 2013 SVT Raptor Sold: 93 SVT Cobra Vortech
2007 GT500 2.9L Whipple
2006 GT Full Cervini C-500 Kit w/Hellion Kit
1990 GT 1st Generation Hellion Kit
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