Electric fan ignition wire

aaronlee133
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Posts: 262
Joined: Thu Aug 15, 2013 4:17 pm

Electric fan ignition wire

Postby aaronlee133 » Sun Dec 31, 2017 10:07 pm

Hey fellas, installing a SPAL fan harness and it requires I splice into ignition so that the fan doesn’t run while engine’s off.

Question: where is the best place to do so in the engine bay? I have the switch/harness positioned next to the coil pack but having problems locating the exact wire to tap into. Thanks Aaron

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shagymc
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Posts: 349
Joined: Mon Jan 14, 2013 9:43 pm

Re: Electric fan ignition wire

Postby shagymc » Sun Dec 31, 2017 10:27 pm

I'd recommend running a relay off of the ignition harness. It will make sure you have the appropriate amperage support needed to run fans.
30: Output to fan ignition
85: Fused ignition 12V
86: Ground
87: Fused 12V to battery

Just my two cents! Good luck!

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jondee86
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Location: Wellington, New Zealand

Re: Electric fan ignition wire

Postby jondee86 » Sun Dec 31, 2017 11:59 pm

If you are doing this, you just need to tap any wire that only has 12V when the key is ON.

Image

So the easiaest one is most likely the 12V supply to the coil and igniter. That input
is just a signal and doesn't power the fan.

Cheers... jondee86
Give a person a fish, they eat for a day. Suggest they search before posting, and they learn a skill for a lifetime.

aaronlee133
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Posts: 262
Joined: Thu Aug 15, 2013 4:17 pm

Re: Electric fan ignition wire

Postby aaronlee133 » Mon Jan 01, 2018 3:30 pm

Thanks fellas and thanks Jondee so it seems straight onto the positive plug of the coil should do it. And correct that diagram you posted is the spal diagram provided.

Happy New Year everyone and long live the ae86! -Aaron

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