where to wire in switch
 

i am about to install a fan switch on my 91 hatch. i have removed all the a/c stuff except for the evap coil in the airbox. the condensor fan fuse in the underhood box is now open. i plan on using it for power since it is a ign only power source. and plan on grounding it under the dash near the switch.

should i wire the switch to complete the ground or power cicuit??

Re: where to wire in switch
 

i always wire

12v+---switch---12v thing--12v- ----|||

ground isnt limited by a faulty switch, we know how important grounds are

Re: where to wire in switch
 

looking at the Helms i found this, so i guess i could put the switch on the ground


OEM EF setup w/o A/C

12V ---------- + -----------FAN-------- - -------TEMP SWITCH--------------GROUND
when the temp switch hits 183* it completes the ground to turn the fan on.



the setup with A/C is similar but its combined into the A/C harness w/ all those relays


i could wire it OEM style but i recently rewrapped all my harnesses and cleaned up my wiring and i dont wanna do it all again

Re: where to wire in switch
 

12V ---------- + -------RELAY------- -----------FAN----------- -------GROUND (Output side of relay)
12V ---------- + -------RELAY------- ----TEMP SWITCH---- ---------GROUND (activation side of relay)

Don't think many temp switches can handle the Amps of the fan can they?

Re: where to wire in switch
 

are you trying to use the ac switch for your fan switch? or are you putting in a whole new switch....

Re: where to wire in switch
 

i am going to use the condenser fan fuse for power , i no longer have any a/c components in my car so the fuse has nothing going to it. i am putting in a manual switch untill i wire it properly through the engine harness.


i

Re: where to wire in switch
 

why dont you just use the old ac button switch and wire directly to the fan then your already be using the fuse for the ac condenser..