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Thread: Another option for $0D efan control

  1. #91
    Fuel Injected! PJG1173's Avatar
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    Quote Originally Posted by Nasty-Z View Post
    O.K , I give up , I typed all of the HEX included in the code above into the Hex editor in T/P for my .bin . How do I get the functions included in the fan control XDF that 93V8S10 provided to show up in my bin on the T/P parameter tree ?

    Am I just missing something ?

    Thanks

    TOM
    I loaded the XDF provided in the zip and loaded all the hex through it. everything showed up just fine for me.
    87 4Runner, 15" spring lift, 3" body, chevy vortec 355, 5.29 gears, 38.5x15.5x15" Boggers, 280hr, 16168625 running $0D
    93 S10, 12" spring lift, 4.56 gears, F/R lockers, 36x12.5x15 TSL's, long tube headers, 266HR cam, p&p vortec heads, $0D Marine MPFI.
    05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,

  2. #92
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    Quote Originally Posted by PJG1173 View Post
    I loaded the XDF provided in the zip and loaded all the hex through it. everything showed up just fine for me.
    Got it now :)

    Don't know what the heck I was doing wrong , but its all good now .

    Thanks

    TOM
    1994 3500 Dually , 502 (509) , 264HR , Edelbrock MPFI , PFI '7427
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    1993 K-3500 "Ex-diesel" 454/4L80E - '7427
    1992 454SS "Eh Stock" , Blower & '7427 swap .
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    1984 S-10 , SAS, 496/700R4/205 , D44/14BFF -'7427
    1980 Z-28 454/700R4
    1977 Olds 98 Regency 403/700R4

  3. #93
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    assuming you guys are cheap bastards like i am, you can make an alternative to a solid state relay using some MOSFETs.

    since the PCM provides ground only when it wants something turned on, a P-channel MOSFET can probably be worked in, though i would confirm this with someone who actually messes with P-channel MOSFETs.

    if i'm right about this, you can grab IRF9540 units from my favorite overseas supplier for $.61 each. each one is rated to continuously handle up to 23 amps in a TO-220 package. i'd add a heatsink to it and group a few of them together, but that's just me.

    i can't figure out the pull up/pull down resistor logic though(i'm used to N-channel), so i wouldn't just jump at it instantly.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  4. #94
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    Just registered here after reading for hours.

    Looks like you are the guys to come to when I have questions with my upcoming instal.

    My first question goes to 93V8S10.....

    Any chance you have a $OE ready version of this handy?


    Thanks

    Jim

  5. #95
    Fuel Injected! gregs78cam's Avatar
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    1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
    1981 Camaro Z-28 Clone, T-Tops, 350/TH350
    1981 Camaro Berlinetta, V-6, 3spd
    1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s

  6. #96
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    Thanks, I saw that one, but it doesn't include the soft start or trans fan this one does though.

    I might be able to figure out the coding to add them, since that post lists most of the locations. The way I understand it the locations are the only difference between $OD and $OE for the purposes of a fan hack....??

    Still not sure I am up to the task of writing/modding my own code yet. Working on getting there, just need to get my head around this stuff a bit more before I will be very comfortable with it.

    Jim
    Last edited by Blazer3664; 12-23-2012 at 08:45 PM.

  7. #97
    Fuel Injected! gregs78cam's Avatar
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    Quote Originally Posted by Blazer3664 View Post
    The way I understand it the locations are the only difference between $OD and $OE for the purposes of a fan hack....??
    Jim
    Yup that's pretty much it. $0D has some trans parameters that $0E doesn't, or at least aren't listed or commented. The Trans control scheme may be slightly different(which could encompass quite a lot of code), I haven't spent that much time comparing them.

    Actually after thinking about it they would have to be somewhat different because of the Turbine Input Speed Sensor, and all the slip calculations that that the PCM makes.
    Last edited by gregs78cam; 12-23-2012 at 04:37 PM.
    1978 Camaro Type LT, 383, Dual TBI, '7427, 4L80E
    1981 Camaro Z-28 Clone, T-Tops, 350/TH350
    1981 Camaro Berlinetta, V-6, 3spd
    1974 Chevy/GMC Truck, '90 TBI 350, '7427, TH350, NP203, 6" lift, 35s

  8. #98
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    Quote Originally Posted by 1project2many View Post
    As a source for solid state, dual fan relays of automotive grade may I suggest 2003-ish and up Dodge Caravans? In the stock application one relay is used to control two fans independently. There are a couple of versions but both are fairly small and would easily mount in a 3" by 5" space. They are usually found on the LF frame rail, LH inner fender, LH side of bumper, or under the LH headlight. Be sure to mount them to a nice solid heat sink as they will get hot and will die if not cooled. Dorman 902310 (pictured with the connector) is typical of the version mounted on the bumper while Standard DR1088 is physically smaller and can be found on frame rail, inner fender, or under headlight. The 902310 is slightly more reliable but will require plenty of airflow for cooling. DR1088 should be mounted to a good, solid metal base which won't get too hot.

    OK A newbie here, i have been reading this post for a few days. I finally got around to getting some of these relays (Chrysler) mentioned above. I have wired up and programmed my PCM. It works pretty good except when the fans come on the lights inside and out flicker. I am thinking maybe it is too much amps to start the fan motor. Is there any solution to the flickering lights?
    Last edited by fatjoe216; 02-18-2013 at 12:13 PM.
    JUBEE

    1987 Astro CL 350ci TBI
    Rebuilt 700R4
    Rebuilt 3.42 gears
    Ugrade 7747 to 7427 PCM

  9. #99
    Electronic Ignition!
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    Anyone??
    JUBEE

    1987 Astro CL 350ci TBI
    Rebuilt 700R4
    Rebuilt 3.42 gears
    Ugrade 7747 to 7427 PCM

  10. #100
    EFI GearHead ! EagleMark's Avatar
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    Got to be where the fan relay is getting power from? If it's stealing power from Accessories then yes, but if the fan relay was getting power from battery it should not happen...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  11. #101
    Electronic Ignition!
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    Quote Originally Posted by EagleMark View Post
    Got to be where the fan relay is getting power from? If it's stealing power from Accessories then yes, but if the fan relay was getting power from battery it should not happen...
    Thanks for responding. The relay is connected to the battery(fused). I have played around with the PCM cycles but that wont help. All wiring is clean with good connections to ground. I have 4 relays and all do the same.
    JUBEE

    1987 Astro CL 350ci TBI
    Rebuilt 700R4
    Rebuilt 3.42 gears
    Ugrade 7747 to 7427 PCM

  12. #102
    Fuel Injected! PJG1173's Avatar
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    Could be a bad body or chassis ground
    87 4Runner, 15" spring lift, 3" body, chevy vortec 355, 5.29 gears, 38.5x15.5x15" Boggers, 280hr, 16168625 running $0D
    93 S10, 12" spring lift, 4.56 gears, F/R lockers, 36x12.5x15 TSL's, long tube headers, 266HR cam, p&p vortec heads, $0D Marine MPFI.
    05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,

  13. #103
    Fuel Injected! TheApocalyptican's Avatar
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    I am going to be using this to control my fans. I really don't need the TPS setting. Since I don't, where should it be set so it doesn't trigger due to tps, or possibly interfere with the other triggers(don't know if it can interfere)? Leave at 0, or put it all the way up?
    '90 Suburban w/ pretty much stock 350 TBI, 7427 ECM Conversion

  14. #104
    Fuel Injected! JeepsAndGuns's Avatar
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    So I just installed a electric cooling fan in my cherokee today. All I gotta do is finish up some wiring. Its a single fan, single speed, and I will be using a standard relay (not pwm). However, I am nowhere near smart enough to put the code into my bin. Is there anyone here that would be willing to do it for me if I email them a copy of my bin?
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

  15. #105
    Super Moderator Six_Shooter's Avatar
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    Quote Originally Posted by JeepsAndGuns View Post
    So I just installed a electric cooling fan in my cherokee today. All I gotta do is finish up some wiring. Its a single fan, single speed, and I will be using a standard relay (not pwm). However, I am nowhere near smart enough to put the code into my bin. Is there anyone here that would be willing to do it for me if I email them a copy of my bin?
    It's easier than you think.

    Open up the hex editor in Tuner Pro (ctrl+h IIRC), go to the addresses needed and type the HEX values into the locations indicated in the first post. Once you get through the values, click on save or commit to bin, save under a new file name, and continue as usual.

    You can add the parameters to the XDF as well, so that you can make adjustments, if there isn't already a posted XDF with the fan parameters in it.
    The man who says something is impossible, is usually interrupted by the man doing it.

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