where does everyone run power wire for efan

[nd240sx3]

right now mines hooked up to the fuel pump fuse. when i turn car off the car takes like 30sec's to actually shut off. so i was thinkin of movin it but dunno where.

[90sr]

hmm im bout to hook mine up to the fuel pump fuse relay cuz mines hooked up directly to the battery and it never shuts off so i pull the negative off all the time, its a pain in the ass believe me, so 30 seconds doesnt sound bad to me, haha

chris

[ledzeppelin240]

You should run a thermo sensor so the fan only comes on when it should otherwise you could be running below operating temp.

[MELLO*SOS]

I wired mine into the ACC relay's blue wire... Its in the relay pod on the drivers side.

See my other post on Altima EFans for more info
http://www.zilvia.net/f/showthread.php?t=62824

edit: yeah they run 100% of the time the key is "ON", and I have no problems with running too cold. Then again, I live in Los Angeles and the coldest weather the car sees is about 50 degrees.... A thermo sensor would be a nice touch though!

[Ritz S14]

Damn.. there are three e-fan threads going all at once. What's up with you guys??

[MELLO*SOS]

Originally Posted by Ritz S14

Damn.. there are three e-fan threads going all at once. What's up with you guys??

I think the real question is, What's up with you post whoring? I mean your post adds nothing positive to the thread.. I updated my eFan post to help anyone looking to do this upgrade. Two people happened to start threads on the same topic today, so now there's three posts on the page about efans.

to 90sr, why don't you wire your fans into one of the relays or wire a switch in your car? Who wants to pop the hood and unhook something from the battery every time they park/start the car?

[Ritz S14]

OK something constructive.

While there were two other threads on which e-fan to choose from, why not add how to install/turn the fan on with out killing your battery or making a switch.. In other words, making it automated so your life is easier with less worries.

Anyways nuff bitching>>

I found this on google, and I know this will help many of you guys with your install. It even has a picture(you know, just like a picture book), to guide you on your install. It's on a chevy board, but this applies to all cars that wants to switch from clutch to e-fan.

here is a diagram I borrowed from them


the article http://www.chevyhiperformance.com/howto/4572/

Relays are used to control a high ammount of current through a low current switch. Fan = High current. Relay = low current. What a relay actually does is shortens up the "beefy" wires so that A)less weight B)less problems C)cleaner install. You save weight because you're using less high current wires (8-12gauge) vs. low current wires (16-18 gauge). You have less problems(if you know what you're doing), because the chances of you shorting a high current wire would be smaller, because the "big" wires are shorter. You also get a cleaner install because you are running less heavy wires back and fourth.. and smaller gauge wires are easier to hide.

Okay so how it all works. Generally on a KA you can fit two decent sized fans to cool the radiator. A single relay can be used to controll two mini fans, but because you have two medium(or larger) sized fans it's better to use two relays. In case some of you don't really have an idea on how to read a diagram, I shalll help you.

Things you need: Fan(s), Relay(s), approx 10' (more is better than less) 8 or 10 gauge power wire, 25(again more is better than less)16-18gauge low current wire , thermostat (for auto turn on), switch, electrical tape, soilder/wire tap, soildering gun, and terminal crimps.

1. Mount the fan, because well you need to know if it fits or not.
2. Find a good ground to ground one side of fan. Usually it does not matter which side is grounded, because most fans are directional.
3. Find your Ignition source. This will supply the fans power when the key is in the "ON" position. On S14s it's a WHITE wire in your ignition harness.
4. After tapping the IGN wire for power run a 5amp fuse as close as possible to the IGN wire so that in case there is a short, your car will start. Run the 18 gauge wire from the IGN wire to your radiator.
5. As you are running the IGN wire to the radiator, make sure you run another 18 gauge wire along with it so that you can install a fan-turn on override in case of an emergency.
5A. Choose a place to mount the switch so that it's easy to access, run one side of the switch to ground, and the other side to your thermostat control(either in radiator fin, or upper radiator hose).
6) wiring up your relay. Run two 8 or 10 gauge power to the relays(each fan having their own line of 8 or 10 gauge). Wire it from the battery to the relay to terminal 38. You'd probably want a 25amp fuse per fan.
7) The wire from the IGN will go to numbers 86 on both relays, you can have a wire jumped on the 86 with one wire comming from the IGN. Again for your car's saftey, make sure it's fused.
8) Mount your thermoswitch (if you have one) and hook up one side to ground. Have the override switch hooked up to the side that is not connected to ground. The side that is connected to the o/r switch and the side which IS NOT connected to ground, connect that number 85 on both relays. If you do not choose to run a thermoswitch ground terminal 85 on both relays.
9) using 8 or 10 gauge wire, wire up the other side of the fan to #87. Again one relay per fan.
10) double check your wiring
11) triple check your wiring
12) turn the key on and let the car warm up. if fans run you're okay.
12a) if you do not run a thermo switch you should hear a "click" as soon as you turn the key on and the fans should turn on.


Hope that helps.

[ledzeppelin240]

HAH....Seems pretty positive to me. If you were to use an infared thermometer it is possible that your engine is running maybe a few degrees cold. But that will take down your gas milage and increase emissions.

[projectRDM]

Why don't you guys quit making it difficult and use the OE wiring? It's there for a reason, trusting an aftermarket thermostat is like trusting a two dollar whore.

[TheSnail]

I used to hook up the fans to the fuel pump fuse, until I encounterd some problems. Now I have been hooking up the fans to the radio.... perfect, shuts off when I turn the key.

[the head]

i use a relay system activated by one of the pwm outputs on my haltech e6x

[codyace]

What i will be doing

[Indolent]

1 ground high speed
2 grounds low speed

Originally Posted by Indolent

my 95 altima fans work like stated above, checked by testing it w/a battery
wiring took me awhile, this is the diagram i used for wiring mine up, easy, just time consuming, well for me since i soldered everything

taken from nistech on nico forums

the way i wired mine up..
-fans on low whenever car is on (kept researching and i didn't want to worry about a fan going out or battery draining due to keeping them on high all the time)
-if i want high speed, all i have to do is switch them on from the inside

here's my modified wiring diagram from nistech's

not sure if it was blue wiring for power to my fans, but makes it easier to read
I used...
-2 relays (used ones from a front clip laying around) unhook the plug to see which # is what wire, 1 relay was used/put inside the empty relay socket in the fuse box (s13)
-2 inline fuses (30 fuse)
-1 ground wire from the fans wired up to the defroster switch on my bezel that i don't use

basically, by doing so, you can control whether you want high (1 ground) or low speed (2 grounds) for your fans not just that but without worrying about them not being on/forgetting to turn them on compared to wiring it just to a switch alone

[rps13dreams]

As R240NA said, why not use the oe setup. The ECU uses the coolant temp sensor to monitor the temp. of the engine, and then grounds the condenser fan relay when temps hit around 200F. I removed the A/C but retained the condenser fan for a cooling fan. No problems yet.

[DrtyRat]

Hooked up my altima fans to my starter relay..and seriously there are alot of efan threads lately!

[formeRiceR]

I'm retarded when it comes to electronics...

any pics of the wiring, I get most of it but actual pics would be nice (you know like the ones in picture books)