Thread: Kicking on Fans At Lower Temp with Real Time

DiF Dual Fan Controller Version B : Universal

There is a funcion that its on Hybrid KA that lets you control the fan temp on/off I use it on my bins jejejejeje
If I remember correctly I have opened a thread on this or the other forum on Calum's section

some ecu's turn the fans on at 203f and some turn them on at about 210-212f just use a bin with the 203 temp. as for what bins those are i cannont remember off hand if you look on the old board you can probly find them.

Dude you are so helpful

Found it: http://eccs.hybridka.com/download/file.php?id=343

Oh my!!!!! I will try this tomorrow! :-D

Woot! I think it's working! I was parking and when I got out of the car the temperatures were at 200*F and fans were on.

I will try to turn it down to kick the fans at 190*F hehe

It's because the data points for the fan turn on/off temps are actually hard coded, not in fixed locations. So if you put their locations in an XDF it would only be valid for one bin. Meh.

Yea, the fan patcher works fine. Note that your fan turn on/off temp isn't just a single fixed value, the code is actually a little complicated and takes into account the current vehicle speed etc. Read your FSM, it describes it in detail.

Did you get your front O2 fixed btw?

That makes sense, I wonder how this patch finds the right area then hehe .

And yes I did notice 4 different levels, I converted them to *F, and it didn't make too much sense to why some came on at a specific time. haha.

As for the Front O2, got my old one back in and it's working like a charm Meanwhile waiting for Rock Auto Bosch 15727 to arrive

It looks for the assembly code pattern. Nissan used the same assembly code for this function on the B13/S13/B14/etc (basically any ECU using a 77xx processor), so you can just match on the pattern to find it.

If your using just that bin (which I assume you would be) just make XDF entries for it, then you can just edit it directly in TunerPro, and have everything named correctly etc.

Seriously read the EC section of the FSM cover to cover btw, it's pretty descriptive of how things work.

Oh I thought that patch was for a completely different car and just happened to work on our Nissan's

That's a good idea, I'll research on how to modify the XDF file with the right information.

I've looked over the EC section a bit, but never cover to cover, maybe my next project