TURNS101

iTrader: (10)

I am going to put my fans on a switch. What size inline fuse should I use for them?? They are stockers in parallel.

Thanks

m2cupcar

iTrader: (5)

Specs say the draw a total of 11.5 amps, startup load is more, so 20amp should suffice. fwiw- You should use a relay in your wiring.

Joe Perez

iTrader: (8)

Rather than switching them directly, why not switch the coil side of the relevant relays? This is how mine are set up- I simply have a small toggle that grounds the wire at the ECU which normally turns them on.

Saml01

iTrader: (9)

^ Exactly.

Just put a switch between the two fan grounds at the ECU and anywhere on the chassis where the switch is.

TURNS101

iTrader: (10)

What if there isnt a stock ECU?

Thanks everyone..

Joe Perez

iTrader: (8)

The wire should still be there.

In my car, I have a Megasquirt and the A/C is removed. I took the black/blue wire that used to go to pin 1J of the ECU ('92 harness) and connected it through a toggle switch to ground. When I turn on this switch, the A/C relay closes and both fans turn on. This wire is also connected to the Megasquirt, so the MS can turn the fans on if I'm not paying attention.

m2cupcar

iTrader: (5)

The wire for the thermoswitch is what you're looking for. That would be the lead to send to ground via your new switch.