Fan Controller Question

theconductor · Jul 20, 2024

I have been using Contour fans with a Derale controller for quite a few years without issue. In the meantime, I swapped out my factory ECU with a Megasquirt PNP. Realizing recently that the MS can be used as a fan controller, would it be ideal to go this route instead of the separate controller?

I will be pulling the ECU out for another hookup, so I'll have a good opportunity to add the controller function to it.

Thanks!

nickyb · Jul 20, 2024

I haven't installed my mspnp 2 yet so let us know how you get this done.

Mustang5L5 · Jul 22, 2024

I've done this little controller with Megasquirt

PWM Fan Control

I know this has been discussed elsewhere and isn’t anything spectacularly new, but recently I did a little playing around with this and made a few videos. There's a lot of OEM fan controllers out there that can be used with various ECU's. I got my hands on a few but settled on one that I was...

stangnet.com

theconductor · Jul 23, 2024

Mustang5L5 said:
I've done this little controller with Megasquirt

PWM Fan Control

I know this has been discussed elsewhere and isn’t anything spectacularly new, but recently I did a little playing around with this and made a few videos. There's a lot of OEM fan controllers out there that can be used with various ECU's. I got my hands on a few but settled on one that I was...

stangnet.com

Thank you for the response. I'm not very sharp with this stuff, so bear with me. . .

If I use the MS turn the fan on and off, I would still need to use my current pwm fan controller right? Would the MS tie in to the input on the controller that is now connected to the temp sensor?

Also, does MSPNP2 now have a PWM output?

Thanks

Mustang5L5 · Jul 24, 2024

theconductor said:
If I use the MS turn the fan on and off, I would still need to use my current pwm fan controller right?

No, you have to make a decision. Use existing PWM controller independently, or grab one of those OE type controllers and use parameters within MS to control it. The new firmware for MS (1.6.0) offers a specific PWM fan control menu.

I admit, this can be a little bit tricky for someone not familiar with how the system works and PWM signals and control

theconductor said:
Would the MS tie in to the input on the controller that is now connected to the temp sensor?

No. The MS will take it's temp readings from the engine coolant sensor, along with other readings from various sensors. It uses that info, along with what is programmed into the PWM fan control menu to output to the OEM stle PWM controller via a single wire.

Essentially the MS is the brain, compiling info from all the sensors used to run the engine, and outputs to the controller via a single wire. Paremeters you can control are things like the fan run % based on coolant temp, turning the fan OFF over a certain MPH (based on VSS readings) and forcing the fan on if you turn the AC on. You can also tweak these settings in MS.

theconductor said:
Also, does MSPNP2 now have a PWM output?

Thanks

I have an MS3pnp, but looking at the MS2 it does look like there are available outputs that can be configured for PWM.

theconductor · Jul 25, 2024

Mustang5L5 said:
No, you have to make a decision. Use existing PWM controller independently, or grab one of those OE type controllers and use parameters within MS to control it. The new firmware for MS (1.6.0) offers a specific PWM fan control menu.

I admit, this can be a little bit tricky for someone not familiar with how the system works and PWM signals and control

No. The MS will take it's temp readings from the engine coolant sensor, along with other readings from various sensors. It uses that info, along with what is programmed into the PWM fan control menu to output to the OEM stle PWM controller via a single wire.

Essentially the MS is the brain, compiling info from all the sensors used to run the engine, and outputs to the controller via a single wire. Paremeters you can control are things like the fan run % based on coolant temp, turning the fan OFF over a certain MPH (based on VSS readings) and forcing the fan on if you turn the AC on. You can also tweak these settings in MS.

I have an MS3pnp, but looking at the MS2 it does look like there are available outputs that can be configured for PWM.'

Thank you for the help here. I'm not sure I'm ready to mess with all of that yet, but I'd like to have the pin wired for the future. Do you happen to know which one I would be using?

90sickfox · Jul 27, 2024

I ise my mspnp2 to control my hogh and low speed fans. I use ground trigger outputs ( forgot the pins ). They control two seperate relays. Been like this almost 9 years.

Fan Controller Question

theconductor

nickyb

I gotta say i never painted my nuts, Never Ever

Mustang5L5

That is…until I whipped out my Bissell

PWM Fan Control

theconductor

PWM Fan Control

Mustang5L5

That is…until I whipped out my Bissell

theconductor

90sickfox

Wasn't a pretty sight...and I've got big hands

Similar threads

Fan Controller Question

I gotta say i never painted my nuts, Never Ever

That is…until I whipped out my Bissell

That is…until I whipped out my Bissell

Wasn't a pretty sight...and I've got big hands

Similar threads

Privacy & Transparency

Privacy & Transparency