Bringing TBI and Multi Port Fuel Injection to a New Level.     EFI Conversions and Tuning! Seattle to Portland! E-mail Tuning Consultant!
Page 1 of 2 12 LastLast
Results 1 to 15 of 20

Thread: 95 16197427 PCM with 94 4l60e

  1. #1
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12

    95 16197427 PCM with 94 4l60e

    So I currently have a 1227747 ecm controlling my 5.7l TBI 350 engine and have a 700r4 code MD8. The engine runs fine but I'm getting tired of issues cropping up with the 700r4. I'm pretty sure there is too much valve/servo bore wear, I'm also tired of improper TCC lockup and yearly adjusting the TV cable with a line pressure gauge. I want to move to a 4l60e and I have a non PWM 1994 4l60e, I also have the 16197427 BJYL PCM I want to swap in. Is there a way to remove the PWM stuff from the BJYL bin with TunerPro? I have a G1 moates adapter and can burn chips no problem but looking at the info:http://www.gearhead-efi.com/Fuel-Inj...Information-0D seems like all the 94 bins are actually for a 16196395 pcm checking on the BCC lookup. Does this mean there would be wire changes when using these bins? I'm thinking of using the BJLH bin.... Is there a 94 PCM that would be better than the 16197427?

    By the way, this is for a Jeep wrangler v8 swap so the 94 transmission was chosen so I can re-use my shifter, adapter, and output shaft from my 700r4. The 95's had longer protruding shift selectors because of the neutral safety switch....

  2. #2
    Fuel Injected!
    Join Date
    Feb 2013
    Location
    Euless, TX
    Posts
    1,701
    Quote Originally Posted by c5wagner View Post
    So I currently have a 1227747 ecm controlling my 5.7l TBI 350 engine and have a 700r4 code MD8. The engine runs fine but I'm getting tired of issues cropping up with the 700r4. I'm pretty sure there is too much valve/servo bore wear, I'm also tired of improper TCC lockup and yearly adjusting the TV cable with a line pressure gauge. I want to move to a 4l60e and I have a non PWM 1994 4l60e, I also have the 16197427 BJYL PCM I want to swap in. Is there a way to remove the PWM stuff from the BJYL bin with TunerPro? I have a G1 moates adapter and can burn chips no problem but looking at the info:http://www.gearhead-efi.com/Fuel-Inj...Information-0D seems like all the 94 bins are actually for a 16196395 pcm checking on the BCC lookup. Does this mean there would be wire changes when using these bins? I'm thinking of using the BJLH bin.... Is there a 94 PCM that would be better than the 16197427?

    By the way, this is for a Jeep wrangler v8 swap so the 94 transmission was chosen so I can re-use my shifter, adapter, and output shaft from my 700r4. The 95's had longer protruding shift selectors because of the neutral safety switch....
    $E6 code will run on a 7427. Some of the ECMs lack hardware for the ISS sensor used on the 4L80E.
    Last edited by Fast355; 1 Week Ago at 09:50 AM.

  3. #3
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,927
    I've done a few 1227747 to 16197427 conversions, allowing a 4L60E to replace the 700R4. I'm thinking BFMF in the link posted above looks promising to use for the 5.7 TBI / 16197427 and 1994 4L60E.

    Bluecat Transmission Table Software (see attached) is very helpful when tuning the 4L60E shift points: https://forum.hptuners.com/showthrea...Table-Software

    dave w
    Attached Files Attached Files

  4. #4
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by dave w View Post
    I've done a few 1227747 to 16197427 conversions, allowing a 4L60E to replace the 700R4. I'm thinking BFMF in the link posted above looks promising to use for the 5.7 TBI / 16197427 and 1994 4L60E.

    Bluecat Transmission Table Software (see attached) is very helpful when tuning the 4L60E shift points: https://forum.hptuners.com/showthrea...Table-Software

    dave w
    Thank you so much! It is also good to know I can tune shift points with the 4l60e. Another reason I hate the 700r4 is the bad shift points because of my 4.88 gears and 35's. Always shifts way too early and at bad moments like crawling in 4wd low 1-2 shift when set to 1st gear. Even after messing with the governor weights since the TV cable has to be adjusted just right, it is still bad.....

    Another thing I need to figure out is the VSS. I currently have a jags that run VSS that only puts out 2000 pulse per mile just enough for the 1227747 ecm. The 2 options I have found are http://www.dakotadigital.com/index.c...916/prd916.htm or a reluctor from https://jagsthatrun.com/products/par...ing-relocation. The reluctor ring seems like the better option because I wouldn't have to worry about low range vss issues for shifting

  5. #5
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,927
    Quote Originally Posted by c5wagner View Post

    Another thing I need to figure out is the VSS. I currently have a jags that run VSS that only puts out 2000 pulse per mile just enough for the 1227747 ecm.
    The 16197427 can also use a 2000 pulse per mile VSS. Where is the JAGS VSS located?

    dave w

  6. #6
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by dave w View Post
    The 16197427 can also use a 2000 pulse per mile VSS. Where is the JAGS VSS located?

    dave w
    The Jags VSS is on my transfer case currently as I have a cable driven speedo. I thought I would have problems with being in 4wd low with it on my transfer case and I noticed the 16197427 has a second VSS input
    VSS input.jpg
    I thought the f13 supposedly takes the 2000ppm, where the F12 takes?????? I'm also trying to get the 128,000 pulse per mile so I can also use the VSSB so I can get the cruise control figured out as well.

  7. #7
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,927
    F13 is the vehicle speed input for the 16197427. Pin A10 is the vehicle speed input for the 1227747. If I remember correctly, one of the JAGS VSS wires (doesn't matter which one) goes to F13 and the other JAGS VSS wire goes to chassis ground.

    If you decide to use a 40 pulses per driveshaft revolution trigger wheel, you will need a VSSB / DRAC which has outputs for both F12, F13, and a cruise output. 128,000 pulses is for Rear Wheel Anti-Lock (RWAL)

    Additional links:

    http://614streets.com/drac.html

    https://ck5.com/forums/threads/drac-...oblems.318351/

    dave w

  8. #8
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by dave w View Post
    F13 is the vehicle speed input for the 16197427. Pin A10 is the vehicle speed input for the 1227747. If I remember correctly, one of the JAGS VSS wires (doesn't matter which one) goes to F13 and the other JAGS VSS wire goes to chassis ground.

    If you decide to use a 40 pulses per driveshaft revolution trigger wheel, you will need a VSSB / DRAC which has outputs for both F12, F13, and a cruise output. 128,000 pulses is for Rear Wheel Anti-Lock (RWAL)

    Additional links:

    http://614streets.com/drac.html

    https://ck5.com/forums/threads/drac-...oblems.318351/

    dave w
    From the16197427 wire Diagram, F13 is the the equivalent of A10 from the 1227747 that I have the current JAGs vss hooked up to. But the F12 pin on the 16197427 is labeled as transmission output speed from VSSB. I have both a few DRACs and VSSBs that I soldered dip switches in for my 95 k1500 and for friends, I thought the VSSB with the 14 pins is what I need.
    20190306_212426.jpg

    Does the F8 pin on the 16197427 PCM labeled 4wd indicator correct the VSS when in 4low? If so, aside from cruise, I wouldn't need to worry about changing the VSS

  9. #9
    Super Moderator dave w's Avatar
    Join Date
    Feb 2011
    Posts
    3,927
    I apologize if my previous posts were confusing. I sometimes get in a hurry to reply to a thread. There are two different VSS options, depending on which transmission being used.
    1. If using a non electronic transmission like the TH350, TH400, 700R4, or manual transmission using the JAGs VSS without the VSSB / DRAC works fine.
    2. If using an electronic transmission like the 4L60E or 4L80E, using a 40 tooth trigger wheel that provides 40 pulses per driveshaft revolution signal to a DRAC / VSSB without the JAG's VSS. It's a good plan to use the F12 input with an electronic transmission.

    It might be possible to use the JAGs VSS with an electronic transmission? I used the 40 pulses per driveshaft revolution signal to a DRAC / VSSB when I did a 16197427 conversion with an electronic transmission.

    I would use the 14 pin VSSB with a 1993 - 1995 electronic transmission 4L60E / 4L80E.

    I'm not 100% sure what F8 really does, but the 16197427 will need an input to compensate for 4WD Low to shift the transmission correctly.

    dave w

  10. #10
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by dave w View Post
    I apologize if my previous posts were confusing. I sometimes get in a hurry to reply to a thread. There are two different VSS options, depending on which transmission being used.
    1. If using a non electronic transmission like the TH350, TH400, 700R4, or manual transmission using the JAGs VSS without the VSSB / DRAC works fine.
    2. If using an electronic transmission like the 4L60E or 4L80E, using a 40 tooth trigger wheel that provides 40 pulses per driveshaft revolution signal to a DRAC / VSSB without the JAG's VSS. It's a good plan to use the F12 input with an electronic transmission.

    It might be possible to use the JAGs VSS with an electronic transmission? I used the 40 pulses per driveshaft revolution signal to a DRAC / VSSB when I did a 16197427 conversion with an electronic transmission.

    I would use the 14 pin VSSB with a 1993 - 1995 electronic transmission 4L60E / 4L80E.

    I'm not 100% sure what F8 really does, but the 16197427 will need an input to compensate for 4WD Low to shift the transmission correctly.

    dave w
    Thanks for all the help! Found out that the F8 is only for 95 bins for the 16197427 PCM. The F8 corrects VSS signal for stock low range (2.72:1) when in 4low. My transfer case out of a rubicon with 4:1 would cause problems anyway unless I could figure out on my own what specific code in the BIN controls this. The 16196395 bins/PCM don't use F8 pin. The F13 is Vehicle speed and the F12 is transmission output speed. For the 4l60e, they should be the same but can show different speeds for low range if using 2 separate sensors. For the 4l80e with it's own VSS on the output, the vehicle speed can be different than the 4l80e output speed sensor ie 4lo. This means I could maintain my current VSS for the vehicle speed and add a separate one for transmission output if I wanted.

    Overall, looks like I'm decided on using the JagsTR 40 tooth reluctor ring and drilling and tapping the rear of the 4l60e for the VSS. With the sensor there, I won't have to worry about low range and bad shift points.

  11. #11
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    49
    Posts
    3,062
    My transfer case out of a rubicon with 4:1 would cause problems anyway unless I could figure out on my own what specific code in the BIN controls this.
    There's a constant in the .bin for transfer case low range. It's called 4WD Low Reduction Ratio. You'd have to spend time figuring out how the value is calculated.

  12. #12
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by 1project2many View Post
    There's a constant in the .bin for transfer case low range. It's called 4WD Low Reduction Ratio. You'd have to spend time figuring out how the value is calculated.
    I figured out how it is calculated since it is a ratio, found out a 4:1 low range is the limit for Low reduction ratio for the Bin. I have modified the $0D XDF Low Reduction Line with an explanation of what to do with different than stock ratios for anyone else needing this for the future.
    Attached Files Attached Files

  13. #13
    Administrator
    Join Date
    May 2011
    Location
    Lakes Region, NH
    Age
    49
    Posts
    3,062
    Hmm... If you are certain that the maximum ratio is 4.00:1 then I could simplify the formula to show the correct ratio and no extra math will be needed. I will keep the t-case ratios in the comments and possibly add a few more T-case ratios as well.

  14. #14
    Fuel Injected! woody80z28's Avatar
    Join Date
    Nov 2011
    Location
    Walton, NY
    Age
    33
    Posts
    150
    Interesting stuff. I actually just bought a 94 truck with a blown 4L60E and have a friend with a free 95 4L60E. I was wondering if I could just turn all the TCC stuff off in the BIN and use the 95 trans in the 94 truck. Has anyone tried something similar?
    80 Camaro Z28 - 550hp AFR 383 / T56 6spd (Holley HP EFI)
    91 Beretta "SS" - 260hp 3400 MPFI / HM282 5spd (7730/$A1)
    94 Silverado Z71 - 300hp Vortec 357 TBI / NV4500 5spd (7427/$0D)

  15. #15
    Electronic Ignition!
    Join Date
    Oct 2015
    Location
    Hell, AKA California
    Posts
    12
    Quote Originally Posted by woody80z28 View Post
    Interesting stuff. I actually just bought a 94 truck with a blown 4L60E and have a friend with a free 95 4L60E. I was wondering if I could just turn all the TCC stuff off in the BIN and use the 95 trans in the 94 truck. Has anyone tried something similar?
    The 94 bin already has the PWM stuff disabled. Why not just use a 95 bin like the BJYL and add the extra wire to the 95 transmission from the PCM for the pwm stuff?

Similar Threads

  1. Searching for a $OD MAF bin W/ 4L60e
    By Stokes1114 in forum GM EFI Systems
    Replies: 3
    Last Post: 06-02-2017, 06:35 PM
  2. Replies: 8
    Last Post: 08-14-2016, 05:59 AM
  3. 4l60e plus carb
    By YetiLove in forum GM EFI Systems
    Replies: 3
    Last Post: 05-03-2016, 08:43 AM
  4. LS and 93 4l60e?
    By Tylerz281500 in forum OBDII Tuning
    Replies: 2
    Last Post: 10-05-2015, 11:25 AM
  5. L19 4L60e $OD
    By fastblue231 in forum GM EFI Systems
    Replies: 0
    Last Post: 03-06-2015, 10:40 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •