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Thread: 1228747 to 1227477 swap.

  1. #1
    Fuel Injected! 1leg's Avatar
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    1228747 to 1227477 swap.

    Thought i should start a new tread as i'm sure i will have a few question that others might find helpful. After this swap is complete and running properly i will begin the 427 swap.
    1989 v-2500 suburban 5.7tbi/TH400 4.11 gears with 1228747

    Swapping in a 1227747(asdz) from a 1989 G20 5.7tbi/700r4 2.73 gears.

    Plugged in with no wire changes:
    Started: OK
    Idle Park: good
    Idle in gear: OK(could be aftermarket cam)
    acceleration: slight stumble on take off
    transmission: shifted OK
    CEL: NONE
    Problem noted:
    Transmission kicks down in to low gear at speeds over 30mph. TCC being engaged do to ECU set-up for 700r4
    slight stumble win taking off from a stop on low speed.
    Attached Files Attached Files
    Last edited by 1leg; 02-11-2012 at 03:51 PM.
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  2. #2
    Fuel Injected! 1leg's Avatar
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    I opened two TPRT windows to compare a 1988 7747 bin for a 5.7/3 speed auto to a ASDZ bin from this site. I modified the ASDZ bin to the same TCC setting as the same on the 3 speed auto bin.

    I have not installed the G2 yet, a little worried about doing it myself. will the above work to fix the kick down/TCC issue.
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  3. #3
    EFI GearHead ! EagleMark's Avatar
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    SOunds like you figured out how to do the bin, what are you worried about? Soldering in the G2?

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

  4. #4
    Fuel Injected! 1leg's Avatar
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    Quote Originally Posted by EagleMark View Post
    SOunds like you figured out how to do the bin, what are you worried about? Soldering in the G2?
    Well i'm hoping it wasn't my solder job that screwed up my 8747.
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  5. #5
    Fuel Injected! 1leg's Avatar
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    Did i program this right.
    chip programming.JPG
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  6. #6
    EFI GearHead ! EagleMark's Avatar
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    Quote Originally Posted by 1leg View Post
    Well i'm hoping it wasn't my solder job that screwed up my 8747.
    Me too but stuff does happen...

    Quote Originally Posted by 1leg View Post
    Did i program this right.
    chip programming.JPG
    Looks right to me. Here's the Moates offset chart.
    http://support.moates.net/2010/04/05...using-offsets/

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

  7. #7
    Fuel Injected! 1leg's Avatar
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    I got the G2 installed, took it for a drive. No log just wanted to make sure the kick down wasn't getting activated.
    Chip using stock BIN but with the TCC set to the same as a 3speed auto bin i found. I had a issue when installing the G2, when removing the pins part of the circuit board mask came of. i had to run a small jumper wire. i should have taking a picture. I did a ohm check and everything looked good.
    Started fine
    No CEL
    Still has stumble off idle
    Drove fine for about 1 mile. I was coming to the bottom of the hill and the truck stopped running, I coast it to a pull out area. Started truck up wouldn't stay running unless i gave it gas, then it would surge really bad. Lucky i had a wrench to disconnect batt. the truck started ran fine, took off short time 100 yard started surging. put trans into N to bring idle up still surging. Disconnected batt again. Started up fine got her turned around for the run back home, made it to the top of the hill surging the whole time. Had to do the Reset a few more times before making it home. I never got a CEL when the engine was running.

    Do i need to remove the wire at A7 along with the zeroing out the TCC stuff in the bin.
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  8. #8
    EFI GearHead ! EagleMark's Avatar
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    Not sure? If you don't have TCC then no need for wire.

    Surging? Don't you have a cam in that that was tuned in other bin? Could be that, don't know why you needed to reset each time though, somthing not adding up. Data log may show an issue. Double checking all wiring since you now have a ECM swap, may need to do something else to bin other than just one item for TCC...

    Post up bin!

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

  9. #9
    Fuel Injected! 1leg's Avatar
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    here's the bin. This is copy from this website, I didn't copy the stock chip yet.

    The surging is more like a bucking. almost like the fuel is being cut off then on. No time yet to hook up the laptop for a log. maybe tomorrow.
    Attached Files Attached Files
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  10. #10
    Fuel Injected! gregs78cam's Avatar
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    Well, I did a compare with the .bin I had running in my truck when it had a '7747, and aside from a few small differences, I noticed that the last address L0FFF in yours has $00, in mine it was $96. That is part of .bin that is not user adjustable. Change yours to $96 and try it.

    I also noticed that your O2 thresholds vs airflow are a little different, I wonder if your ecm is trying to correct fuel, and the thresholds you have are not playing well with the PID routine, causing the oscillation (surging) to be uncontrollable.

    One more thing, you have the engine startup RPM set to 561 rpm. Try dropping that to between 450 and 500rpm.
    Last edited by gregs78cam; 02-12-2012 at 08:52 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

  11. #11
    Fuel Injected! 1leg's Avatar
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    Thanks, I'm going to try and copy the stock chip tonight and start with it. It ran fine except for the TCC. Could you pm me your bin for me to try. Also not sure how to change that address is do you use hex editer.
    1993 RCSB 1/2, 350/4l60 Eaton locker 3.42-1. Drag truck ET 10.84 1/8mile. Build Thread
    1989 V2500 Suburban 350/th400, 4.11 gears, Tow truck, needs TBI 454 swap. Build Thread

  12. #12
    EFI GearHead ! EagleMark's Avatar
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    Quote Originally Posted by gregs78cam View Post
    Well, I did a compare with the .bin I had running in my truck when it had a '7747, and aside from a few small differences, I noticed that the last address L0FFF in yours has $00, in mine it was $96. That is part of .bin that is not user adjustable. Change yours to $96 and try it.

    I also noticed that your O2 thresholds vs airflow are a little different, I wonder if your ecm is trying to correct fuel, and the thresholds you have are not playing well with the PID routine, causing the oscillation (surging) to be uncontrollable.

    One more thing, you have the engine startup RPM set to 561 rpm. Try dropping that to between 450 and 500rpm.
    that's a lot of things? Maybe that chip is just wrong?

    That's not a stock chip.

    BCC result page!



    BCC used in 1989. (Scroll down for more info)

    BCC= ASDZ9578

    Scan id= 9501

    Part number= 16139577

    Release date= 02/02/89

    Engine size= 5.7

    Trans Type= Auto trans

    ECM/PCM: ECM #01227747
    Used in trucks:

    GMC
    Possibly used in:

    C1500,2WD,1/2 TON

    C1500,2WD,1/2 TON

    C2500,2WD,3/4 TON

    C2500,2WD,3/4 TON

    G10 VAN,2WD,1/2 TON

    G15 VAN,2WD,1/2 TON

    G20 VAN,2WD,3/4 TON

    G25 VAN,2WD,3/4 TON

    Options:
    Without GU2 AXLE, REAR, 2.73 RATIO

    With L05 5.7L GAS 8 CYL (5.7K) V8 TBI

    With MD8 AUTO 4 SPD THM 700 R4

    With NB2 CALIFORNIA REQUIREMENTS

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

  13. #13
    Fuel Injected! gregs78cam's Avatar
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    I tried both of these and I think that AMUR is the one I settled on.
    Attached Files Attached Files
    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

  14. #14
    EFI GearHead ! EagleMark's Avatar
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    Here's the bin from my Suburban. It has Hiway Lean Cruise enabled so this might not be good if you tow big loads! Also set to kick out if high load, so may be fine? Also has ESC forced knock test turned off so your motor does not have to be forced to knock once every startup cycle. It runs great in my 1990 Suburban 5.7L 2wd 700R4.

    I looked at last chip I did for 5.7L turbo 350 and made the same changes... since it's an automatic bin all the IAC logic is correct for auto driving.

    I also zipped the $42-1227747-V4.xdf with I think 3-4 changes (like above for turbo 350) to disable TCC, turn off Code 24 VSS, and 2 other bit changes for manual trans. They are all marked in XDF with **OFF** or **SET TO MANUAL** at the end of paremeter name so you can see what I did.

    I don't understand what you did for the Turbo 400 kickdown, nor have I ever done that or researched it but you seem to have that worked out...
    Attached Files Attached Files

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

  15. #15
    EFI GearHead ! EagleMark's Avatar
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    gregs78cam was posting same time I was getting this stuff ready for you! Ha!

    My chip is ADSU hypertech stage 1 I found in an ecm. It has very little changes from stock, believe me I searched it! Then added Hiway and ESC test done. Then was tuned to my Suburban which was mechanically sound. So it should run good with known changes needed for turbo 350 auto trans.

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

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