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  1. Replies
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    The only real issue I see you running into is...

    The only real issue I see you running into is your fuel gauge. 98+ gmt400 gas trucks run the fuel sending unit to the pcm, and it in turn runs the fuel gauge. With an 0411 you use an express can fuel...
  2. Yep, the S10 & Blazer PCM's are the same as a dbc...

    Yep, the S10 & Blazer PCM's are the same as a dbc van, I have a stack of 6 of them I've picked up. They have the iac drivers and the analog ac inputs/outputs in them. I'm toying with the idea of...
  3. EFILIVE WILL do the 0411 with a 5.7L L31 as I am...

    EFILIVE WILL do the 0411 with a 5.7L L31 as I am running that very setup in my 99 TAHOE. You would use an 02 4.3l tune, but do an engine segment swap with a matching OS number from the van. That...
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    787

    All I swapped was the Camaro operating system...

    All I swapped was the Camaro operating system segment so I could get the fans to work via the ac pressure sensor. When I did the swap, it changed it from a gmt-610(van) to F-body in G1206, so I left...
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    With a camaro OS, you will have to wire in a...

    With a camaro OS, you will have to wire in a resistor for the ac pressure sensor. Tbe Camaro OS will default the fans on low all the time without an ac pressure sensor. I would switch back to a truck...
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    I forgot to post it earlier, but here is the base...

    I forgot to post it earlier, but here is the base file I used straight from, TIS. It's from an 02 EXPRESS van.

    23052
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    787

    Tune check 0411 swap?

    Can somebody look over this tune file for me and see if I did the segment swap correctly? I have a 99 TAHOE with the older 5.7L vortec(distributor engine, low res crank sensor with 4 crank & 1 cam...
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    821

    The VATS disable does not work on LML/LGH....

    The VATS disable does not work on LML/LGH. Several have tried it on the facebook swap page, and they all ended up spending the $2K to the company that has made a box to make it work. I don't remember...
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    3,124

    I believe you can do the force read on an lb7...

    I believe you can do the force read on an lb7 like you can an ls1b, but it involves opening the ecm up to do it.
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    1,308

    My throttle body is just the 454 throttle body...

    My throttle body is just the 454 throttle body and blade, I'm using the 350 shaft in it so the linkage hooks up like stock.

    Here's my current file. The file I posted earlier is stock except for...
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    The IAC passages are nearly identical between the...

    The IAC passages are nearly identical between the 2 except the 454 throttle body has an extra passage, but it's blocked in my spacer(have to run one to clear the external fuel rail), and the intake....
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    I have it set now so that minimum air(IAC fully...

    I have it set now so that minimum air(IAC fully closed, hot idle of 200, & in park) is right around 450 RPM's. It adapts to 40 IAC steps at a hot idle in park, goes up to around 67 with the AC and...
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    larger throttle body tuning

    I tried searching, but I'm not coming up with an answer to my issue. I have a 99 TAHOE with a 5.7L vortec, 0411 PCM swap running an 02 OS, dual electric fans, Camaro segment swap(modified the request...
  14. For LML EVERY segment MUST match perfectly or...

    For LML EVERY segment MUST match perfectly or else you WILL have problems.
  15. I have 2 cab & chassis tune files, but neither...

    I have 2 cab & chassis tune files, but neither one has the fuel system segment's mapped out. The H&S probably doesn't have a dual tank fuel system segment in it which would cause your issue because...
  16. I would start by swapping in a 02 LM7 engine...

    I would start by swapping in a 02 LM7 engine segment. There's alot more changes than just VE and cylinder volume between an LS1 and LM7. Then I would be checking your wiring for your O2 heaters. The...
  17. You might could try the 98 ls1a pcm to see if...

    You might could try the 98 ls1a pcm to see if that works. I use my tech 2, so I don't know about efilive doing it. I do know externally 96/97 looks the same as 98-00, but internally they're...
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    I found a list online of a company auctioning off...

    I found a list online of a company auctioning off trucks and it had vin numbers listed. That was how I found the 01. From what I've found, 1500's were 4.3's, 2500's were still 6 lug, but had the 5.7l...
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    I know most just use the van OS, but here's an 01...

    I know most just use the van OS, but here's an 01 L31 manual trans from a GMT-800 truck out of Mexico. I'm still on the hunt for an 02 to compare to the 02 van OS. I did see quite a bit of difference...
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    If you want to tune an L31, the 1st step I would...

    If you want to tune an L31, the 1st step I would reccomend is an 0411 swap(unless you're tuning an 01/02 van that already has one). The 96/97 pcm is only tuneable by 2 programs I believe, 1 is no...
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    827

    Did some searching and I think I got just the...

    Did some searching and I think I got just the thing for you. A 2004, 2500 SUBURBAN, 8.1l, 4L85E, and it's 4X4.

    22903
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    If you can get me a VIN number of what you're...

    If you can get me a VIN number of what you're looking for, I can flash either an 0411 or my 1mb for you with my TECH2, and read it back out with my V2. And FYI, there was never a pickup tune with an...
  23. The injectors did change, but it's not a big...

    The injectors did change, but it's not a big change. You could have just as easily have loaded the 1256 02 os into your 99 pcm. You can disable vats, or do a vats relearn, and run the 02 as is, but I...
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    One thing I did notice is when efilive reads the...

    One thing I did notice is when efilive reads the PCM, the displayed seed is $FFFF whereas my spare PCM I bought shows up as $2B76. This PCM has only been flashed a handful of times as far as I know...
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    I can read it fine with efilive. I'm trying to...

    I can read it fine with efilive. I'm trying to read it out with another program and cable so I can get my tune file in a .bin format, and make some changes using tunerpro with some tables somebody...
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