NoESP's Coolit Fan Mod almost done - any last minute requests?

[noesp]

OK, so I'm putting the finishing touches on the software for my fan mod, and before I install the prototype into my car, I'd like to see if I hit the mark on all a fan mod could offer.

Here's the photo of the board again:

Here's how it's set up to work right now:

Press the ESP button 3 times (rapidly), and it goes into "Both Fans High" mode.

Press the ESP button 4 times, and it goes into "Both fans Low" mode

Press the ESP button 3 or 4 times when it's already in one of the forced ON modes listed above, and it will go into "Auto" mode. Upon entering this mode, both fans will pulse OFF/HIGH/OFF to indicate that the mode has been accepted. In this mode, Coolit uses the Coolant Temp Sensor to determine if the fans need to be on High, Low, or Off. The system is optimized for use with 180 degree thermostats.

Press the ESP button 6 times, and it goes into "Full Off" mode. Upon entering this mode, the fans will pulse OFF/HIGH/OFF/HIGH/OFF to indicate that the mode has been accepted. This does not mean that the fans don't work, they just are controlled by the car's PCM, and the Coolit board will not intervene. This mode is good for flashing off contaminents, or when bringing the car in for service.

In order not to have to push the button each time you start the car, Coolit will resume the last mode it was in when the car was last shut down. So if it was in "Auto" mode for example, it will stay in "Auto" mode indefinately, unless you tell it otherwise.

The car's PCM signals to turn the fans on remain connected; so even if the Coolit Module power/ground goes bad, your fans will still be controlled by the stock PCM.

When you press the ESP button to set the Coolit module to select a mode, you may end up with the ESP on or off... just wait 1 second and press the button again to put ESP in whatever mode you want it in. And no, it won't screw up your NoESP module!

Soooooo..... Did I hit the mark??? Can you think of anything else a little fan mod could possibly do? The time to speak is now! I'm almost ready to say "I'm done"

... oh yeah, price. I will offer it in two flavors, as I mentioned once before.
Coolit Auto - whch has all of the functions listed above will sell for $150
Coolit Manual - which pulls out the Collant Temp Sensor function (manual control only (HIGH/LOW/OFF) will sell for $75

[Biscuit]

Wow! Nicely done!

[Northern Rider]

Wow. Great product!

As described, it does it for me.

[Stumbo]

Thats what I'm talking about!!!!!

[Stumbo]

BTW, whats the ETA on this bad boy? Looks like its exactly what I was waiting for.

[RobAGD]

What are you looking at for temps for the Auto mode for on and off points ? Any way to add say a dip switch so that could be a user set points ?

Looks good, you might want to look into sourcing out a pass through plug for the ESP button That way you can splice into that vs tapping wires and its remains removable without leaving a foot print.

Very cool options though.

-R

[Deep Lava]

Will this work in conjunction with your original NoESP mod?

[maherm]

Count me in if it can be optimised for the 160 deg. thermostat
It is very essential in our harsh hot weather (KUWAIT-Middle East)
Thanks
maherm

[joseph]

How about just a fan mod in auto mod for those of running 180 thermostats, I don't need all the high/lo fan controls, just want something to lower the temp at which the fans will engage to use with my 180 (like the GSM esp/fan mod)

[InferAl]

How and where will it be istalled and located

[Todd RT]

SWEET! Let me know if you need a beta tester in FL!!

[FlyByU]

Im in, what time do you want me to come by today

[BMWDON]

Coolit Manual - which pulls out the Collant Temp Sensor function (manual control only (HIGH/LOW/OFF) will sell for $75

On the manual version, HIGH will be both fans on HIGH, LOW will be both fans on LOW and Off would be PCM controlled fans like normal? If that's the case, this is what I need, just want both fans on high when I'm at the track, otherwise, I'll let the PCM do the cooling. Product looks very professionally done man! I'm sure it'll be a good seller!

[Jaak]

I'd say low speed 3 presses, high speed 4.

Low speed will do most of the time, and doesn't suck the same amount of current, loading the alternator, and sucking out the associated HP.

The current difference between the two is enormous.

Also, a visual indicator, even as an option, is useful. Can't hear the fans running when my engine is.

You are turning on the fans throught the CAN bus, right? Oh wait, I see two relay drivers. Too bad... I was hoping.

[noesp]

Let me see if I can answer all your questions at once:

ETA: next week.

Does require tapping into a couple wires, and cutting/splicing 2 wires.

Installed under engine bay fuse/relay box. PCboard will be wrapped in heat shrink tubing, should make for a clean, neat installation. One wire goes to ABS controller (ESP button sense), one wire goes to Coolant Temp Sensor (next to air intake).

NoESP sits under the radio bezel, while this board sits in engine area. Combining the two functions would require running wires through the firewall, and that's no fun.

I can see that I'm already going to get requests for lower temps than 180. I'll offer 180, 170, and 160 versions. Same price. Lead time on the 170 and 160 might be slightly longer, since I'll have to reprogram them.

Auto only? I guess, but without hooking up to the ESP button's wire, you'd have no way to disable it, so the PCM could take full control (like when you're bringing it in for service) And GSM's mod is just a switch and relay - no auto mode there. It only turns one fan on high

High mode = both fans on high
Low mode = both fans on low

PCM can always still turn the fans on when it wants to also.