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    Thanks for the knowledge. Was just surprised...

    Thanks for the knowledge. Was just surprised that it wouldn't pull past 4800 in 1st gear, but it didn't upshift. The reason I have a 4L60E in the truck now is because the planetary let go in the...
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    7427 4L60E 1st Gear Fuel Cut Off????

    I've had one nagging issue with my 7427 MAF, 4L60E equipped 86 C10, it will not rev past ~4800 rpm, or exactly 35 MPH in first gear. It acts like it hits a fuel cut off barrier. Every "Fuel Cut...
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    I believe it does. I never messed with the...

    I believe it does. I never messed with the underlying XDF file other than change the MAF table to a 3 wire vortec MAF.
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    Please, don't use the files posted above, they...

    Please, don't use the files posted above, they are garbage. Here is a BIN and XDF file that will work. This XDF has a 3 wire vortec MAF table in it, however, I'm running this bin with a 5 wire 5.3...
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    I keep getting the same 32K result. Here is a...

    I keep getting the same 32K result. Here is a file that was labeled from last Jun. Before today, it was the newest one I have. Organization is not my strong suit.
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    I'll rescan the chip and see what I did wrong. ...

    I'll rescan the chip and see what I did wrong. Thanks Dave.
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    Bin, ADX / XDF files.

    Couple of folks hit me up for these files. Again, this is Deminted24x7 and Fast355 sourced info. I'm sure others aided this conversion in the past. These files use the vortec 3 wire MAF sensor...
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    The 7427 will control the 4L60E too. The reason...

    The 7427 will control the 4L60E too. The reason I swapped from the 7747 to the 7427 was to run a MAF sensor. Runs so much better than Speed Density.
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    Thanks to Dimented24x7 I got this to the 4L60E...

    Thanks to Dimented24x7 I got this to the 4L60E and MAF combo to work. The key was starting with the correct $0D MAF bin. The original MAF bin I tried didn't have the 4L60E shift code located at hex...
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    7427 MAF 4L60E Bin

    BLUF - I need a $0D .xdf file running MAF and 4L60E

    My 700R4 decided to eat its internals. Not sure if it was miss-adjustment of the TV cable or what. I've decided to replace it with a 4L60e...
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    Is there any particular late model TBI motor I...

    Is there any particular late model TBI motor I should grab manifolds from? I got some from a 90 Suburban but the head pipes didn't look much different from what is already on my truck.
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    I've got a performer EGR intake I was thinking of...

    I've got a performer EGR intake I was thinking of putting on the truck (replace the factory TBI intake), and the reason is sitting on top of the intake. Before that, I need to rethink the exhaust...
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    Here is the modified XDF (for 700R4 TCC control),...

    Here is the modified XDF (for 700R4 TCC control), ADX (correct vortec three wire MAF tables) and BIN. Hope others can use these. I'm not taking credit for these, I only modified XDF and ADX files...
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    Thanks for the offer but you've fixed it already....

    Thanks for the offer but you've fixed it already. I copied your 700R4 code into a MAF xdf file I'm using. Tested it out this morning and it worked like a champ. Pin E11. I'll post the bin, and xdf...
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    I put a BJYL bin in the computer tonight. With...

    I put a BJYL bin in the computer tonight. With the TCC wired to pin E11, it worked perfectly. Nothing when wired to E10. I plan on copying all of the TCC code over to my MAF bin and see if it will...
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    That's exactly what happened. The 7427 MAF XDF...

    That's exactly what happened. The 7427 MAF XDF files I'm using don't have the TCC options in them like the 7427 non MAF masks I've found. I've started dropping scalers into the attached mask from...
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    I've read threads that cover the 7427 w/ MPFI...

    I've read threads that cover the 7427 w/ MPFI swap, but I haven't seen it used with a MAF. I'm trying to learn how to write in HEX so I can get the lockup on my 700R4 to work. The MAF / 7427 is...
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    what are you working on? I used a signal...

    what are you working on? I used a signal generator on My LT1 swapped Nova, but if I had to do it over again, I would use a 700R4 or 4L60E and converted the dash to an electronic speedometer. I...
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    It past

    Update for anyone that can use this. Truck past without having a working EGR. I modified the ADX file to MAF flow frequency table matched my three wire Vortec MAF sensor. I'll post the files...
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    7427 MAF 700R4 BIN Help

    Finished the 7747 to 7427 swap about a month ago (recommend) followed by installing a three wire vortec MAF and separate IAT sensor (HIGHLY RECOMMEND the 7427 / MAF setup for TBIs!!!!) Truck runs so...
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    Thanks Fast...here's what I think was wrong with...

    Thanks Fast...here's what I think was wrong with mine (and I meant to update this thread, just been buried at work). After replacing the TPS and O2 sensor (both needed it but didn't solve the...
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    By full open I'm saying that it opens to at least...

    By full open I'm saying that it opens to at least 145 count. I verified it with both TunerPro R/T and WinALDL. IAC counts would be between 30 - 50 at idle in park. As soon as I dropped it into...
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    Yes, it runs better when I unplug it, at least it...

    Yes, it runs better when I unplug it, at least it doesn't turn 2K when I shift it out of D with the IAC unplugged, or load itself up against the converter. I did modify it to take fuel out of the VE...
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    7747 IAC problems...help!

    BLUF: No matter what I change, IAC retracts to wide open when I shift truck from park to drive.

    Backstory: 86 Chevy 305, 204/214 @ .050 rv cam, 416 305 heads, 350 injectors. I set max IAC to 0...
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    Thanks Fast. I've read a lot of your posts from...

    Thanks Fast. I've read a lot of your posts from this site and over on 3rdgen. Really appreciate the wealth of knowledge you've posted over the years.
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