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    PCM Holodeck?

    Thinking yesterday about how often my kids play Android games on the pc using a virtual machine, or how they sometimes run old DOS or Winnows games using a different virtual machine, and I wondered...
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    I do not believe 125 rpm is too slow for cranking...

    I do not believe 125 rpm is too slow for cranking or starting. I have "pop" started engines that were turning at much slower speeds.

    In the most recent video it sounds as if there is a vacuum...
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    Hello, I would generally follow a series of...

    Hello,

    I would generally follow a series of tests to diagnose this. Realizing that it's an intermittent issue on a boat, I would still attempt to find a way to confirm the plugs are sparking and...
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    Welcome to the forum. There are a number of...

    Welcome to the forum. There are a number of steps before Tunerpro will be able to display data for you. You will need a definition file for your truck. The best way to locate the correct...
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    In OEM configuration the IAC will move when the...

    In OEM configuration the IAC will move when the throttle is opened. In GM software this is called the "Throttle Follower."
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    Are you getting an error message? The site...

    Are you getting an error message? The site should allow uploads.
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    Some of the factory tanks from the '80s use a...

    Some of the factory tanks from the '80s use a square or rectangle "bucket" that's roughly 4" X 4" X 2". I created one that was about 3" X 3" X 2" to go inside the in-cab tank in my '57. It helped...
  8. There are many ways to determine crank speed. ...

    There are many ways to determine crank speed. Before GM used crankshaft mounted reluctor rings they used the distributor. Early CCC vehicles were carbureted with a computer. The distributor...
  9. I have used the Howell EFI swap which uses a...

    I have used the Howell EFI swap which uses a modified tach signal. The system seemed more reliable after being changed to use a proper square wave signal generated by a GM ignition module.

    HEI...
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    Hi, Welcome to the forum. That's an...

    Hi,

    Welcome to the forum. That's an unexpected combination of vehicles to be sure. Hopefully you can find tools here to help get them running as well as you'd like.

    I have heard a few...
  11. There was a TCM only controller used in the early...

    There was a TCM only controller used in the early '90s in trucks equipped with a 6.5.

    The crank sensor signal used with 0411 is a 0-5V square wave signal. The HEI module provides intermittent...
  12. Often, complex and challenging symptoms trace...

    Often, complex and challenging symptoms trace back to very simple issues caused by an oversight or two during reassembly. It's possible that a visual inspection could reveal the problem without...
  13. Thread: Hi

    by 1project2many
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    Welcome to the forum. Sounds like a good plan to...

    Welcome to the forum. Sounds like a good plan to get started. I've found it very helpful to have a dedicated laptop as well.
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    Hello. Welcome to the forum.

    Hello. Welcome to the forum.
  15. A definition file is essentially a map of the...

    A definition file is essentially a map of the calibration. At a minimum it will include a location in the calibration file, a description of what data is at the location, and a formula or method to...
  16. Hello and Welcome to the forum. You will have...

    Hello and Welcome to the forum.

    You will have more luck in your searches using 1227730. I'm not sure what a great $88 definition file consists of. It seems as though most are missing details. ...
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    The Mask ID shown by Bithoist isn't read from the...

    The Mask ID shown by Bithoist isn't read from the .bin. The Mask ID is determined by looking at the locations of specific tables then matching them up to a template of sorts. The ID Byte is read...
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    Bithoist approves this file! ...

    Bithoist approves this file!

    ---------------------

    BitHoist

    Here is the results of your BCC/Chip/Bin file!

    Processing file 16168625 bdfk.bin
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    If the calibration is going very lean during...

    If the calibration is going very lean during deceleration then it's likely the manifold has no fuel left by the time you press the throttle. This is a tough condition to detect and to tune around...
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    In addition to the volumetric efficiency, you...

    In addition to the volumetric efficiency, you also have a much larger plenum that is not heated in the same way as the original TBI intake manifold. Generally when moving from original TBI to single...
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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...
  24. 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.
  25. 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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