$OE dual fan control

[Nasty-Z]

Anyone point me to the correct location for the $OE version of 93V8S10's fan control ?

I run the $OD version on my pickup and it works great , but I must have missed the $OE version.

I found this :http://www.gearhead-efi.com/Fuel-Inj...D-efan-control which talks about $OD , but it references to :http://www.fullsizechevy.com/forum/g...n-code-0d.html for $OE control. And as I read it , that code has a set on and off temp and is only for one fan.


Basically what I am searching for is what I am using now , but for $OE .

Thanks

TOM

[one92rs]

are you wanting to control the fans separately? or how exactly are you wanting to control them.

[Nasty-Z]

I want to control each fan (2) seperately .

I already run 93V8S10's fan code for $OD in my S10 pickup ,it works flawless .

I just need to run the same setup in $OE and cannot seem to find it .

Thanks for the help.

TOM

[one92rs]

now if this could be written to a 746 ecm it would be great.

[EagleMark]

Not much room to play on a 4k chip compared to a 64k chip...

I've never seen a final $0E fan code, guys have done it single... IIRC something from the 4l80E trans was in the way of where they were writing stuff?

[dave w]

Not much room to play on a 4k chip compared to a 64k chip...

I've never seen a final $0E fan code, guys have done it single... IIRC something from the 4l80E trans was in the way of where they were writing stuff?

Here is the information I copied / pasted about the $OE fan code from the FSC link. Provided by Fierobsessed post 13

dave w




So here it is, The same code, adapted to work for $0E:

Ram Variables:
L0283 = MPH
L00A8 = Coolant Temp
L004D,BIT 0 = A/C STATUS (1 = A/C Requested on)
L0052,BIT 3 = Fan Output Control
L0151 = Minimum Fan Run Timer

To enable this routine, be sure to change the Value at address 7C07 from D567 to 7120
Connect the fan relay to E3, Connect the other end of the relay coil to Power. The computer GROUNDS E3 to run the fan.

Coolant temp example:
199 deg F
199 + 40 = 239
239/1.35 = 177.04 (round to 177)
177 is B1 in hexidecimal.

Calibrations:
L7100 19 db High MPH Fan Cutoff (25 MPH)
L7101 B9 db Coolant Temperature Very High Value Enable (210 deg F)
L7102 B1 db Coolant Temperature High Value Enable (199 deg F)
L7103 AA db Coolant Temperature Low Value Disable (190 deg F)
L7104 2D db Minimum Fan Run "MFR" Time (45 Seconds)

Algorithms:
L7120 CE 71 00 L7120 LDX #L7100 Start of fan Calibrations
L7123 12 52 08 1F BRSET L0052,#$08,L7146 If Fan is On, Skip to "Load MFR Timer Variable"
L7127 96 A8 LDAA L00A8 Load Coolant Temperature
L7129 A1 01 CMPA 1,X Compare to Coolant Temperature Very High Value
L712B 22 11 BHI L713E Go to "Turn On Fan" if Higher
L712D 12 4D 01 06 BRSET L004D,#$01,L7137 If A/C is On, Go To "Load MPH"
L7131 96 A8 LDAA L00A8 Load Coolant Temperature
L7133 A1 02 CMPA 2,X Compare to Coolant Temperature High Value Enable
L7135 23 37 BLS L716E Go To "End" if Lower
L7137 B6 02 83 L7137 LDAA L0283 Load MPH
L713A A1 00 CMPA 0,X Compare to High MPH Fan Cutoff
L713C 22 30 BHI L716E Go to "End" if Higher
L713E 14 52 08 L713E BSET L0052,#$08 Turn on Fan
L7141 A6 04 LDAA 4,X Load MFR Timer
L7143 B7 01 51 STAA L0151 Save MFR Timer to L0151
L7146 B6 01 51 L7146 LDAA L0151 Load MFR Timer Variable
L7149 26 16 BNE L7161 If timer is Not Zero go to "Load MFR Timer Variable"
L714B 12 4D 01 06 BRSET L004D,#$01,L7155 If A/C is On, Go To "Load MPH"
L714F 96 A8 LDAA L00A8 Load Coolant Temperature
L7151 A1 03 CMPA 3,X Compare to Coolant Temperature Low Value Disable
L7153 23 09 BLS L715E Go To "Turn off fan" if Lower
L7155 B6 02 83 L7155 LDAA L0283 Load MPH
L7158 A1 00 CMPA 0,X Compare to High MPH Fan Cutoff
L715A 22 02 BHI L715E Go To "Turn off Fan" if Higher
L715C 20 10 BRA L716E End
L715E 15 52 08 L715E BCLR L0052,#$08 Turn off Fan
L7161 B6 01 51 L7161 LDAA L0151 Load MFR Timer Variable
L7164 D6 02 LDAB L0002 Load Loop Counter
L7166 C4 F0 ANDB #$F0 Mask First 4 Bits
L7168 26 04 BNE L716E Skip To end if no Decrement of Timer Needed
L716A 4A DECA Decrease MFR Timer by 1
L716B B7 01 51 STAA L0151 Save MFR Timer to L0151
L716E 4F L716E CLRA Clear A Register
L716F 5F CLRB Clear B Register
L7170 39 RTS Return


7100: 19 b9 b1 aa 2d 00 00 00 00 00 00 00 00 00 00 00
7110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
7120: ce 71 00 12 52 08 1f 96 a8 a1 01 22 11 12 4d 01
7130: 06 96 a8 a1 02 23 37 b6 02 83 a1 00 22 30 14 52
7140: 08 a6 04 b7 01 51 b6 01 51 26 16 12 4d 01 06 96
7150: a8 a1 03 23 09 b6 02 83 a1 00 22 02 20 10 15 52
7160: 08 b6 01 51 d6 02 c4 f0 26 04 4a b7 01 51 4f 5f
7170: 39

[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.

[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.