Blown & Ventilated

[Blown]

I made a run to the PickNPull. I got another EECV cover/mounting plate to place over the existing one since the EECV sticks-out a bit with the tuner mounted. I also scored a passenger side vent, the old one was missing a vane.

I found the old EECIV Pin Outs I had were larger. So I also grabbed a few wires at the yard with the EECV connector pins attached. I cracked/cut it open to get them out clean. I used a 3/32 drill bit to drill out the pin holes in my harness connector to open up 45 and 46. It is not hard to do but you can drill through easy cutting other wires and I imagined the bit catching/twisting the harness........Drilling opens the existing hole on the connector side enough for the wire and pin to fit through and it does drill-out the wire side of the connector. The pins click-in and do not pull back out.

 

[Blown]

I tested the pin outs I added to no avail. I have posted on the Tweecer site for some help.

 

[Blown]

It appears that the hardware to control fans is present in the Mustangs EECV's not this Explorer EEC..............Jumped the gun with pin-outs..............Tweecer owner/tuner had me datalog with a register enabled for Fan Off, Fan Low and Fan High. It never changed from displaying Fan Off.

 

[valenciaismail]

If it was much higher, I'd try a new thermostat and hope Nox Vidmate VLC for one that opens a little earlier for that rating. But you're fine, the fans may need some rethinking depending on what cfm they do move.

 

[Mesozoic]

It appears that the hardware to control fans is present in the Mustangs EECV's not this Explorer EEC..............Jumped the gun with pin-outs..............Tweecer owner/tuner had me datalog with a register enabled for Fan Off, Fan Low and Fan High. It never changed from displaying Fan Off.

I finally got around to testing this as well. I've added a pin to position 46 to get the HEDF out and I'm seeing nothing. I'm going to swap the pin over to EDF on position 45 and play with that now. Just to confirm that HEDF isn't restricted from turning on unless EDF is on or something like that.

I will say that the CDAN4 EEC-V I have from a '96 Mustang GT has the same EDF and HEDF setup and it works right out of the box. So I'm not sure what might've disabled this on the Explorer EEC-Vs, unless they're missing some circuitry. I'll post up once I pin swap to 45.

Swapped to pin 45 and still no result. This could also be related to the patch code for this feature in the definition. I'll email CoreTuning and see what they have to say about it. I'm pretty sure Clint is running an EEC-V on his old '67 Mustang with the fan controls working.

 

[Mesozoic]

Ok so the response from Core Tuning is that the Explorer EECs do not have the I/Os needed to support the fan outputs, unfortunately. Even a mere GPIO would suffice, so this is a pretty sad state of affairs!

 

[410Fortune]

Crown Vic eec? Would that have it?

 

[Mesozoic]

Crown Vic eec? Would that have it?

AFAIK, it would, but the box I’ve used on another project that definitely has the fan output hardware is the JZP3 coded unit from ‘96 Mustang. I’m going to take a look at some of the microcontroller boards I’ve built in the past and see if they’ve got a spare ADC or 2 for measuring a discrete sensor for ECT and also the AC function; both of those inputs would be necessary to turn on an e-fan. A couple of COTS controllers were also suggested to me as well, including the DCC unit, Auto Control Guy and Dakota
Digital.

 

[CDW6212R]

I like the one DCC unit I have used in my 99 V6 Explorer. But it is a fragile construction, the terminals for the power are very small, about an 1/8" or so, and brass. Just a little torque on the nut securing the ring terminal will break it off, I did that the first time I put the main ground wire on.

They will only accept a slight amount of tightness, a child could break them if you let one try it. Fortunately I used two nuts together on the first attempt, there were two extra nuts and I wanted it a little farther out. That became lucky, because with the stud broken there, there was just enough threads left to attach the ring terminal. I don't think they(he) has upgraded that, so you have to be really careful when tightening those nuts.

 

[410Fortune]

I’m liking this crown vic pcm idea more and more for running these gt40 based sbfs

 

[Mesozoic]

I’m liking this crown vic pcm idea more and more for running these gt40 based sbfs

Well it definitely works as I’ve run a 408 stroker with coil packs and the 4R70W behind it all successfully. Tying in the AC control with the coolant temp is something a stock EEC does well, but not sure about dropping one of the earlier computers into the Ex… I might try to make something.

 

[410Fortune]

Yes please 408 cubes and a 4r70w that would be fun in a little ranger

 

[Blown]

The Mezozoic would have done it were it possible!

Double rats! I think we can put Explorer EEC fan control to rest. Perhaps the ECT sensor output and A/C controller could be tapped into and a fan controller made? sound like a bunch of work.

I ended up controlling single speed fans with two variable thermostats. They utilize simple push-in radiator probes which I placed by the radiator inlet. I staged them to run two, large, pusher fans at 170 degrees and then the three small lower fans at 180, with a 160 degree coolant thermostat.

It's not as desirable, ugly, but simple and effective.

 

[Mesozoic]

The Mezozoic would have done it were it possible!

Double rats! I think we can put Explorer EEC fan control to rest. Perhaps the ECT sensor output and A/C controller could be tapped into and a fan controller made? sound like a bunch of work.

I ended up controlling single speed fans with two variable thermostats. They utilize simple push-in radiator probes which I placed by the radiator inlet. I staged them to run two, large, pusher fans at 170 degrees and then the three small lower fans at 180, with a 160 degree coolant thermostat.

It's not as desirable, ugly, but simple and effective.

Yeah, what you have definitely works, though. The only thing missing is the tap for the AC signal. Alternatively (and I've done this on my '79 Bronco), you could have a smaller AC condenser specific fan setup as a pusher on the front of the assembly that is triggered by the AC signal. This works pretty good and provides better airflow through the condenser than using the radiator fans, especially if the shroud isn't well developed. I only did this because I live in southern Arizona where it's seriously hot in the summer.

There's only one other issue that I've seen when converting to e-fans and making it work with AC: the EEC has controls to increase ISC airflow to compensate for the extra load on the engine (imposed by the alternator) when the e-fans are turned on. In the case of my '89 Fox which has the Contour twin fans and an AC condenser fan, the load is significant enough to cause the idle to surge enough to stall. So that would be an argument for keeping the EEC in the loop, but I'm still a bit dubious of running an older Crown Vic EEC in place of the Explorer for some reason.

 

[CDW6212R]

The later Crown Vic PCMs(2003 and 2004 are popular) will run all of the older Ford EFI, but I don't know what wiring it takes to leave out the COP, and it requires the 99-01 cam synchronizer(two wire). Those might have the fan controls you want, I think they came with both a mechanical fan and the electric fan inside too. I'm going to use that for my 347 in a 92 Mark VII, with COP etc.

 

[Blown]

I have added 100 rpm to idle, which helps the engine keep-up with the alternator load and supercharger. I also have the fans coming-on at different temps/times so as not to load the engine/alt all at once.

 

[Rick]

I am running this fan controller on both of my hot rods. I am using it with Spal fans and not controlling fan speed, just on and off. It has an A/C trigger as well.

Temperature Speed Controller

Digitally Control Two Fans Independently Set On/Off temperature settings digitally for each fan Adjust desired speed 100% waterproof and high temperature proof (under hood operation) Large, bright LED screen displays operating temperature and set points Controls Delta PAG Brushless fans or any...

deltapag.com

 

[donalds]

I use flex a lite variable speed controller
It covers the AC and everything I have had no problems with it

 

[Blown]

Nice controllers!

I bought my fans, relays, and breakers from Americanvolt.com I see that they have expanded their line to include oil/tranny coolers, sandwich plate adapters, additional wiring kits, cooling kits and stuff. I like their pricing, making a profit but not greedy and all my stuff is working after two years.