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  1. Replies
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    Thank you, I used a 1227749 OBD1 Syclone /...

    Thank you,

    I used a 1227749 OBD1 Syclone / Typhoon ecm.

    I found a thread where folks using Megasquirt to replace the OE ECM on a 4.0L switched to the 217-419 b/c they couldn't get the idle...
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    Sure. The pictures of the TB modification are...

    Sure. The pictures of the TB modification are blurry so I apologize for that. But it should show what I did.
    http://home.metrocast.net/~shannen/yota/22RTE/TBinstall/Toyota_TB_01.html

    It looks...
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    When I put the 7749 into my Toyota I grafted on...

    When I put the 7749 into my Toyota I grafted on the IAC adapter plate from a 4.0 TB. I ended up switching out the Jeep IAC for a GM IAC. You've already made your adapter but if you'd like I will...
  4. Nice. It's really good to see someone else that...

    Nice. It's really good to see someone else that knows the old tech.

    Welcome to the forum.
  5. Welcome to the forum. Congratulations getting...

    Welcome to the forum. Congratulations getting the old girl going again. It sounds great.

    There aren't too many people around that remember Steve Cole's software. We've definitely come a long...
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    Well done! The computer really doesn't care...

    Well done! The computer really doesn't care about what's it's running. As long as you are supplying signals that work with the hardware the ecm will do its best to run the program and produce an...
  7. I would use those same rear brakes if I stumbled...

    I would use those same rear brakes if I stumbled on the right axle. Folks love to recommend switching to rear disc brakes but they don't always seem to think about how the vehicle is used. I...
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    5,201

    That makes sense. Unfortunately I don't have...

    That makes sense. Unfortunately I don't have tuning tools set up on this pc so I am unable to check that file. If you can't see the options using your tuning software maybe you could grab the VIN...
  9. Hello from a fellow Suburban owner. There...

    Hello from a fellow Suburban owner.

    There are some cams that can improve low end and possibly reduce the need to swap to 4.11 gears. If you're looking for strong braking I was able to switch to...
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    I do not know. Do you have tools to open and...

    I do not know. Do you have tools to open and modify the calibration?
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    Hi, Many of the '01 and '02 Express van L31 +...

    Hi,

    Many of the '01 and '02 Express van L31 + 4L80E calibrations appear to be fully compatible with 4X4 vehicles. A number of the van files on gearhead-efi came from cutaway vans in our fleet and...
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    That looks like a good start. I have hopes and...

    That looks like a good start.

    I have hopes and plans for a 4.0 Jeep using an OBDI GM controller, DIS, and a 2000+ block. I have tried obtaining a flywheel with an unmachined reluctor ring but...
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    "1. Install it in my conversion project as is and...

    "1. Install it in my conversion project as is and hope for the best?
    2. Would it be useful to test resistance across each injector? Is there a range I’d be looking for, or just consistency?
    3. send...
  14. Thread: MPG

    by 1project2many
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    222

    I apologize for the sidetrack. Have you...

    I apologize for the sidetrack.



    Have you looked into using a Cutaway tank? I believe 1997 chassis Cutaways were available with a 55 gallon tank.
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    Very interesting. And it makes sense. Thanks...

    Very interesting. And it makes sense. Thanks for sharing.
  16. I'm not really sure whats happening, but it...

    I'm not really sure whats happening, but it appears the name of the thread in the database was altered or truncated but the title of the thread, which is dynamically updated, is being generated...
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    Current draw = Volts / Resistance Resistance...

    Current draw = Volts / Resistance
    Resistance for 1 TBI injector = 1.8 Ohms so current = 14V / 1.8 Ohms = 7.8 Amps
    Resistance for (4) L31 PFI injectors in parallel = 3.75 Ohms so current = 14V/...
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    You will want to have the wiring diagrams for the...

    You will want to have the wiring diagrams for the '91 and the '97 handy. Use the connectors from the 97 harness where needed. It's amazing how many subtle things can be different so plan to take...
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    TTS is out of business but you may be able to get...

    TTS is out of business but you may be able to get similar software from Tunercat.

    Tunerpro has some good definition files. Do you know the BCC (four letter code) from your ecm?
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    Someone else will have to review an HPTuners log....

    Someone else will have to review an HPTuners log. Unfortunately I do not have that software.
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    Hello! Welcome to the forum. Fleet work is good...

    Hello! Welcome to the forum. Fleet work is good but grueling. Congratulations on your retirement.

    What are you using for an OS on the 5.3?
  22. If you've been on other forums where folks tend...

    If you've been on other forums where folks tend to bash each other, this place is generally not that way. Folks here are more likely to help than to insult. It's common here to see folks who are...
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    Ok, thank you.

    Ok, thank you.
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    I'm nut sure you're doing anything wrong. At...

    I'm nut sure you're doing anything wrong. At this time PCMHammer is able to successfully communicate with the PCM and is able to upload instructions to enable reflashing. Then the software reports...
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    Could you provide an example for me to look into...

    Could you provide an example for me to look into it?

    Thanks,
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