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New ECU Pins? (Adding Fan Control)

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Old 05-26-2010, 09:28 AM
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Default New ECU Pins? (Adding Fan Control)

I have the proper crimper, but where can I find new ECU pins? I would like to add fan control to my harness, but don't want to splice wires if I can help it. A part number would be even better.

While Im asking, is it better to run the fans on their own with a sensor, or allow the ECU to control them??
Old 05-26-2010, 09:37 AM
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powerandsignal.com pn 12084913-L

If they won't sell in low quantity just try googling that pn and see what you can find.
Old 05-26-2010, 10:00 AM
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If you only need 1 or 2 just get ripped off by the dealer
If you need a bunch of them, I get them from Mouser
Old 05-26-2010, 10:06 AM
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Well Im considering re-routing the PCM so it could be 100+ pins.

While Im asking, what is the wire gauge size?

Oh, and thanks for the PN...
Old 05-26-2010, 12:04 PM
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your factory harness is going to be mostly 20 gauge with some 18 and 22 gauge in there also.
Old 05-26-2010, 12:11 PM
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just curious why you are avoiding splicing wires?
Old 05-26-2010, 12:25 PM
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Originally Posted by sidewayz28
just curious why you are avoiding splicing wires?
Why not avoid splicing them. I figure I have the tools, time to avoid any splices so why not. Ive done them in the past though. I want a harness with minimal splices in it.
Old 05-26-2010, 12:40 PM
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im a newb when it comes to wiring, i was just curious. i successfully completed my first wiring job last night, but i did indeed used splices.. since they were there already
Old 05-26-2010, 12:57 PM
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Originally Posted by sidewayz28
im a newb when it comes to wiring, i was just curious. i successfully completed my first wiring job last night, but i did indeed used splices.. since they were there already
I have no problems with splices. Im just picky about details, and when the Jeep is several miles from civilization, I don't want to worry about a bad splice. Normally I would use splices as needed, but Im tryin to avoid them if I can with this build.
Old 05-26-2010, 12:59 PM
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right on man, anyways. i THOUGHT i ordered some pins from a <non sponsor> but they never showed up? not sure what happened. but i was able to pick up a basic GM terminal "kit" from my local parts store
Old 05-26-2010, 08:21 PM
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On my wiring I took some of the unused wires/pins I had removed from the harness that weren't being used, such as EVAP stuff or A/C stuff, and added them at the proper pin locations for fan control. You will have to have the PCM programmed for fan control if it did not have it previously.

I have a bunch left over, and I have a habit of not throwing things away. Let me know what you need and I can most likely help.
Old 05-26-2010, 10:01 PM
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Originally Posted by neal64ss
On my wiring I took some of the unused wires/pins I had removed from the harness that weren't being used, such as EVAP stuff or A/C stuff, and added them at the proper pin locations for fan control. You will have to have the PCM programmed for fan control if it did not have it previously.

I have a bunch left over, and I have a habit of not throwing things away. Let me know what you need and I can most likely help.
Yeah, I didn't think of this till later, but I have to run 100% of the emissions stuff. Either way, Im going to re-route the harness to the back passenger side for my jeep so I will be re crimping a bunch of ends anyway. Should be fun...



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