$OE dual fan control

[gregs78cam]

Pretty sure that's for single fan control, that's what I am using. He wants a dual fan version with PWM (soft) start, yes?

[Nasty-Z]

Pretty sure that's for single fan control, that's what I am using. He wants a dual fan version with PWM (soft) start, yes?

Yes , that is exactally what I want .

The soft start really dosen't matter to me , but I do need it to control two fans.

Thanks for any help

TOM

[Nasty-Z]

FWIW ,

I will not be running a 4L80E , is there a way to use the $OD code and such in $OE if one is not using a 4L80E ?

I guess my only other option is to use a $OD .bin to start with , anyone know of a $OD .bin that I could start with to run a mild 454 ? Or would someone be willing to help me transfer the parameters I need to from the 454 / $OE bin to a starting $OD bin ?

Thanks again

TOM

[JeepsAndGuns]

I am using a 0D 5.7L bin to run my AMC 401. I used to run a 0E 7.4L bin but switched. I copied a lot of the 7.4L parameters into my new bin.
I would open two instances of tunerpro and copy and paste all your important parameters. Stuff like fuel and spark, probably all the AE, PE, DE, and DFCO parameters too. It would take a good bit of time, but I dont see any reason it couldnt be done.

[dave w]

I think it would OK to use one PCM output (ground signal) for two individual fan relays. The PCM output could be wired to both relays, with each relay controlling one fan each.

I'm thinking I like the idea of using a 454 .bin and a 454 Memcal.

dave w

[one92rs]

reason I was asking is I have this schematic for the 4th gen fans. if you wire the fan relay #3 to a/c it will work great. with a/c signal only then only one fan comes on on high. with temp setting one reached both fans come on at about 60%. with a/c signal and temp or high temp only both fans come on at 100%. just a thought.

[Fast355]

reason I was asking is I have this schematic for the 4th gen fans. if you wire the fan relay #3 to a/c it will work great. with a/c signal only then only one fan comes on on high. with temp setting one reached both fans come on at about 60%. with a/c signal and temp or high temp only both fans come on at 100%. just a thought.

That is just asking for compressor failure in hot weather. You are better off using both fans on low with the a/c request and high speed with engine temp rise. You get more air than a single fan on high and more even cooling of the condenser. Colder a/c and less noise are both wins to me. My PCM controls the low speed on my Express with high overide coming from a F-car cylinder head mounted fan switch. My 0411 setup running the 5.7 express calibration runs 1 fan as an auxiliary. Its output turns both fans on low. The cylinder head switch bumps the fans to high. Also since I pulled my relay control power from an unused constant hot fuse under the hood if the engine is shut down hot. One cooling fan can turn on and cool the engine. With a 170*F thermostat and powerful GM truck fans it rarely hits the 200*F.

[Nasty-Z]

I am using a 0D 5.7L bin to run my AMC 401. I used to run a 0E 7.4L bin but switched. I copied a lot of the 7.4L parameters into my new bin.
I would open two instances of tunerpro and copy and paste all your important parameters. Stuff like fuel and spark, probably all the AE, PE, DE, and DFCO parameters too. It would take a good bit of time, but I dont see any reason it couldnt be done.

I have a good 5.7/700R4 $OD .bin to start with , it is the one I use in my dads S10 , it also already runs the 700R4 and the dual fan code, but it started and is for a 5.7 / 350 engine .

The only problem I have , is I really don't know what parameters would need to be overwritten from the 454 $OE .bin I have to the $OD 5.7 .bin to run the 454 ...... would anyone be willing to help me locate them ? I'm sure I can figure out how to copy and overwrite them to the $OD .bin , just not sure which ones will need to be overwritten.

Thanks for all of the help , sorry to ask so many questions ......

TOM

[EagleMark]

There's just to many to list them all. It's like a segmant swap just doing each paremeter at a time. I made a 7.4L 700R4 $42 bin this way...

Have to open TunerPro with $0D XDF and bin. Select Paremeter ordered list instead of catigories, then Tools, Custom Tools and New TunerPro Instance. In that one open $0E XDF and bin, and do one paremter at a time, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste, copy paste,

[JeepsAndGuns]

Like mark said, open a new instance of tunerpro and then go back and forth between them. I would copy everything that has to do with fuel and spark. So copy all the spark biases, engine constants, all the AE, PE, DE, EGR, and DFCO parameters, fuel and spark tables, etc.. Pretty much anything that has to do with controlling the engine. I would just star at the very top of the list of parameters and work my way down. Its not going to be anything really hard, its just going to be very very time consuming. So just work on it a bit, then save it, write down where you were, and then go do something else for a while to give yourself a break.