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Type: Posts; User: Shdwdrgn

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  1. Replies
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    Yep, flashing with a copy of the tune file from...

    Yep, flashing with a copy of the tune file from another vehicle with the same gearing has worked perfectly since that time. Basically I had to grab a stock tune file and manually copy all the...
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    Not directly. Due to changing my axle gears last...

    Not directly. Due to changing my axle gears last Fall I acquired some new data that I sent to the HPT team. They gave me an update to see if the new information could be changed, but unfortunately...
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    Adjust shifting when AC is running

    I have a 2004 Trailblazer with a 4.3L I6. My normal shift table is sitting where I like it, however when the AC is running (and I assume this would also apply to any time I'm under load like when...
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    Just an update here... Both the front and rear...

    Just an update here... Both the front and rear differentials have been replaced with the 4.10 gears now, and I continue to get abs/brake system warnings every time I cruise at a constant speed for a...
  5. Need a file for an 02-05 Trailblazer with 4.10 gears

    I am swapping the gears in my truck from 3.42's to 4.10s, but cannot seem to find a dealership that can correct the programming changes, and HPT doesn't provide the fields in the GUI for my platform....
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    Well, the changes had no effect on the speedo or...

    Well, the changes had no effect on the speedo or odometer, but it seems like it is shifting at about the right range. I also had to soften up my shift times because it was hitting the gears hard,...
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    Erg... I just realized I posted in the V6 section...

    Erg... I just realized I posted in the V6 section rather than under I6. :doh:
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    Thanks for jumping in. Adjusting the settings...

    Thanks for jumping in. Adjusting the settings under Speedo makes sense, but I don't follow why the shift and lock tables would have to be adjusted afterwards... If the first settings were already...
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    Changing gear ratios on the I6

    I have a 2004 Trailblazer with 3.42 gears. I am in the process of swapping to 4.10 gears, and I'm wondering if anyone can tell me if there is anything I can change with HPT to update the computer?
    ...
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    It's worth a shot to try it that way... except...

    It's worth a shot to try it that way... except everything I've read says the opposite -- that if the numbers are positive, it means the computer had to compensate by adding more fuel, so I would want...
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    I finally got some time to start working on this...

    I finally got some time to start working on this again, so I wanted to start by posting my starting point. Below I have attached my current tune (which I have been running for the past 4 weeks), and...
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    From which point do you want the info? My...

    From which point do you want the info? My starting point, and a log/config showing what I'm seeing? Or do you want an adjusted tune file based on the scan I got the first round, and the changes I...
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    Maybe I'm starting this wrong... From my...

    Maybe I'm starting this wrong... From my reading, my understanding is that you want to do VE tuning from SD mode. However I thought I read somewhere that since the 2002-2005 Trailblazers don't have...
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    OK I found these tables, but what am I plotting...

    OK I found these tables, but what am I plotting against? Sensor=Load? PID=Absolute Load? I guess I'm completely lost as to what I'm supposed to do with this data.

    In the meantime, while looking...
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    Can anyone help with this? The main problem I'm...

    Can anyone help with this? The main problem I'm facing is that in the editor, the Dbl/Sgl-fire VE tables are RPM vs Load%, but there's no clear indication what Load% is supposed to map to. Is this...
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    VE Tuning - What am I doing wrong?

    I have a 2004 Trailblazer with a P10 PCM, and am 'blessed' with having 5 different VE tables to tune. At the moment I am focusing on the low RPM Dbl/Sgl tables. These tables span 600-3800 RPM...
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    Personally I'm using the GlobalSat BU-353, plus I...

    Personally I'm using the GlobalSat BU-353, plus I have an ancient serial model from Radio Shack. Otherwise I have talked to other people who have various GPS units, but I don't have any specifics on...
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    GPS functions for VCM_Scanner

    When recalibrating the vehicle's speedometer, it helps to have a GPS available. You can pick up some pretty nice units that plug into the computer's USB port, however trying to find any decent...
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    Sorry to bump an old (ancient) thread, but I...

    Sorry to bump an old (ancient) thread, but I can't seem to find any newer information on this topic. I see that foff was going to take a look at the issue, but it doesn't appear that any changes...
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    Bump for item #1 -- Any chance someone can share...

    Bump for item #1 -- Any chance someone can share their experience on these vehicles now and give us the newbie version of where to start tuning this engine?
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    LTFT histogram without a MAF

    All of the tuning guides I've looked at seem to expect all vehicles to have a MAF sensor. Mine does not, and when I connect VCM_Scanner to my vehicle, MAF is marked as unsupported in the table.
    ...
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    Ah ok. So how often do the firmware updates come...

    Ah ok. So how often do the firmware updates come out? And would I need the updates if the interface already supports the vehicles I intend to work on?
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    I'm not sure I follow. Which firmware are you...

    I'm not sure I follow. Which firmware are you referring to? The MPVI itself, or do you mean the PCM/VCM? My main concern is with updating my PCM. I know USB1.1 is quite a bit slower, and I'm not...
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    USB requirements

    I just ordered the standard suite last week, which I assume will come with the USB interface. Since I would like a dedicated laptop for HPT, I pulled an old machine out of my pile which slightly...
  25. I'm not sure if you are asking me or the OP, and...

    I'm not sure if you are asking me or the OP, and I'm not trying to hijack OP's thread, but I currently have a tune from PCMforLess. Since its not my information to give away, I can't just post an...
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