Thermoswitch removal
#1
Thermoswitch removal
Hi everyone,
Firstly, sorry if this has been asked before, coudn't find the answer.
Some time ago I picked up a reroute kit that was used for a 1.8, I myself have a 1.6. Lately I've been wondering if I really need the thermoswitch when I'm running on a DIYPNP, since I have the blockoff plate without the thread for the thermoswitch.
My "theory" is that the thermoswitch opens/closes (most likely closes) the circuit when the coolant temp is high enough to run the fan, but the Megasquirt already seems to have control over the fan via the ALED or WLED pin. (can't remember which one from the top of my head) Can't I just jumper the wires from the loom side of the connector together and keep the circuit closed at any time and let MS handle the fan control? Or is it not that easy and will the fan constantly run if I wire it this way? Want to clean up some wiring in the engine bay since the bay will be white and black wires don't look that nice in there.. I'm too lazy to do a full wire tuck :P
My idea: (paint professional yo)
Left: stock, Right: My possible solution
Just to be clear; with thermoswitch, I mean this thing (please correct me if it isn't the thermoswitch :S)
Firstly, sorry if this has been asked before, coudn't find the answer.
Some time ago I picked up a reroute kit that was used for a 1.8, I myself have a 1.6. Lately I've been wondering if I really need the thermoswitch when I'm running on a DIYPNP, since I have the blockoff plate without the thread for the thermoswitch.
My "theory" is that the thermoswitch opens/closes (most likely closes) the circuit when the coolant temp is high enough to run the fan, but the Megasquirt already seems to have control over the fan via the ALED or WLED pin. (can't remember which one from the top of my head) Can't I just jumper the wires from the loom side of the connector together and keep the circuit closed at any time and let MS handle the fan control? Or is it not that easy and will the fan constantly run if I wire it this way? Want to clean up some wiring in the engine bay since the bay will be white and black wires don't look that nice in there.. I'm too lazy to do a full wire tuck :P
My idea: (paint professional yo)
Left: stock, Right: My possible solution
Just to be clear; with thermoswitch, I mean this thing (please correct me if it isn't the thermoswitch :S)
#3
Yes that's a thermoswitch. There's only one wire going to it though, when it's grounded the fan relay trips and the fan turns on.
Verify your MS is properly controlling the fan, I've had issues with that before. If it is, you can simply remove it. If not, you'll want to either fix the MS, or find a way to incorporate the stock thermoswitch and wiring back into your setup.
Verify your MS is properly controlling the fan, I've had issues with that before. If it is, you can simply remove it. If not, you'll want to either fix the MS, or find a way to incorporate the stock thermoswitch and wiring back into your setup.
#4
Yes that's a thermoswitch. There's only one wire going to it though, when it's grounded the fan relay trips and the fan turns on.
Verify your MS is properly controlling the fan, I've had issues with that before. If it is, you can simply remove it. If not, you'll want to either fix the MS, or find a way to incorporate the stock thermoswitch and wiring back into your setup.
Verify your MS is properly controlling the fan, I've had issues with that before. If it is, you can simply remove it. If not, you'll want to either fix the MS, or find a way to incorporate the stock thermoswitch and wiring back into your setup.
EDIT: I remember the relay clicking when I was testing the ALED/WLED output on the MS (back when my fan stopped working for a day or so), so I guess that guarantees that the MS is properly controlling the fans right?
#6
Bottom line is: Will it be able to work without the thermoswitch and/or will I be able to make it work without it?