Re: No air flow to radiator..... Need help!!!!!
 

No...

The "Switch" in the picture is your FACTORY POWER WIRE that would normally go to the fan.

Re: No air flow to radiator..... Need help!!!!!
 

I don't see a detailed explanation on how to wire this fan up from you in this thread. I see all the info you stated about aerodynamics and ducting.

Re: No air flow to radiator..... Need help!!!!!
 

I have mine wired the same as your diagram then if that switch referents the +12v from the stock fan harness. I'm almost home I will double check. Maybe I'm just tired and missed something

Yeah i deleted my posts

Hence the " good luck "

Yes use the 12v from the stock fan harness

Re: No air flow to radiator..... Need help!!!!!
 

Sooooooo. That's no help then

Re: No air flow to radiator..... Need help!!!!!
 

Thanks for the other info tho. It was really helpful

Re: No air flow to radiator..... Need help!!!!!
 

So I made it home and here's how it's wired up.
There aren't numbers directly next to each wire on this relay so I can't just name numbers and colors.
Yellow wire is running fused straight to the battery
Red wire is going to the fan
Black wire from fan is going to tans. Ground
Orange wire is going to stock fan plug (blk w/red)+12v
Grey plug going to body ground.

Hooked up this way the fan will turn on when I reaches a certain temp but doesn't turn back off until the key is turned off.

Also I just moved the grey wire to one of the 2 wires on the the thermostat housing. But same results as before.

Should I try the grey wire on the other 2nd wire on the housing or will that just not work.

Broo

Ur making this way too hard

Post a pic of your relay and ill tell you where to put the wires

The terminal view of the relay

Also once the coolant get to a certain temp fan comes on

Do you have hondata ? Watch the temps and make sure they drop when the fan kicks on

Re: No air flow to radiator..... Need help!!!!!
 

That's what frustrating cause it should be wired right.

Re: No air flow to radiator..... Need help!!!!!
 

Hers a better one

I said a pic of the terminals

Re: No air flow to radiator..... Need help!!!!!
 

Relay

Okay put the red to the batt. With a fuse inline

The yellow to the fan positive

Then the two small ones one goe to the stock fan harness {12v switched by ems} and the other goes to chassis ground

Then Ground the spal fan

Done

If the fan doesnt turn off after that then you having cooling problems or things

Re: No air flow to radiator..... Need help!!!!!
 

I will got on this in about 2 hours. Thanks. So were the directions wrong?

30 and 87a are the thicker wires and 85 and 86 are the thinner wires

I didn't look at the diagram again so the colors might be reversed

The way i told you to wire it will work 100 percent

Yellow goes to batt red goes to fan. These two can be flipped doesnt matter

The grey and orange also. Switched 12v is orange which you will get from the stock fan harness

The grey is going to ground

Re: No air flow to radiator..... Need help!!!!!
 

This is exactly how I have it hooked up already. So I need to look into another problem. But before I installed the relay my stock system would cut on and off at idle.

Guess I have some more researching to do.

What ems do you have? The fan doesnt always need to be running

Re: No air flow to radiator..... Need help!!!!!
 

Have a p28 with Hondata s300

Re: No air flow to radiator..... Need help!!!!!
 

You need to de-pin the and rewire the connection part of the relay. The fan signal is a negative output, so by adding the relay you have to make it a positive output.

86 and 30 need fused power
85 goes to trigger
82 goes to the spal

Hope this helps

Re: No air flow to radiator..... Need help!!!!!
 

So to clarify

86=grey wire=needs to be 12v fused
30=yellow= 13v fused to battery
85=orange= trigger ( where is that for my car) oem fan 12v plug???
87=red= to the spal fan

Re: No air flow to radiator..... Need help!!!!!
 

So I might have missed it but are we wiring up NASAs newest space shuttle or a radiator fan lol?