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Type: Posts; User: larboc1

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  1. Replies
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    Grade braking/engine braking

    I've got a 2012 silverado and a 2013, both unlocked with HPT and I'm trying to figure out how to get the engine braking on the suburban to work as aggressively as the silverado. When manually...
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    What about spark advance? Are MBT and knock...

    What about spark advance? Are MBT and knock limited region spark tables affected by ethanol content?
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    Bone stock, the only tuning I had done to it...

    Bone stock, the only tuning I had done to it previously was to set the misfire threshold higher because it would stop going into v4 mode on the highway at 70mph if it "rumbled" in V4 mode going up a...
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    '12 5.3 ethanol calculation TSB update?

    I've got a stock '12 Silverado LC9 that was run with E85 one time and every since it's been stuck saying the alcohol percent is 66.7% even after resetting LTFT's and 4 full tanks of E10. Start rough...
  5. Well that was a waste of two credits. The VCM...

    Well that was a waste of two credits. The VCM Editor was able to successfully flash entire to the ECM, however the VIN is still nonsense and it's behaving the same way. Also, when I tried to read the...
  6. Interesting. I feel like the chances of the truck...

    Interesting. I feel like the chances of the truck it came from being tuned would be pretty slim but there's always a chance. Would a car part store scanner still work if it had a locked EFI live...
  7. Thank you for the advice. So in theory a...

    Thank you for the advice.

    So in theory a healthy ecu should have no problem communicating with the mpvi directly?

    That's kind of what I am starting to think as well. I looked around further on...
  8. Sorry, I see now that it's confusing. I was...

    Sorry, I see now that it's confusing. I was avoiding a long story.

    Think of it as a engine on a dyno. No truck involved, just the ECU, FICM, and a web of wires.

    I'm actually trying to get the...
  9. Connecting to 2002 Duramax ECU without the BCU?

    I'm trying to connect to a 2002 duramax ECU with my mpvi pro. I ASSUMED that GM connected the OBD port straight to the ecu and there are two pins on the ECU labeled "class 2 serial data" so I figured...
  10. I'd bet MAF. I helped diagnose a stock 5.3 that...

    I'd bet MAF. I helped diagnose a stock 5.3 that would have a horrible bang occasionally at highway speeds from the 4l60 trying to either downshift or be in two gears at once. Nobody could figure it...
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    Follow up to anyone else approaching this: ...

    Follow up to anyone else approaching this:

    After accidentally wasting two credits on unlocking an .hpt file I downloaded from the repository due to a laptop restart, I got it working. Helped out a...
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    1999 5.3 Auto to manual swap

    Didn't find much searching. Going to tune a 1999 5.3 1500 silverado that had a 4l60e which he swapped to a manual sm465. What do I need to take with me to do the swap? I already downloaded a .hpt for...
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    Thanks for the help, I suppose it's off to the...

    Thanks for the help, I suppose it's off to the dealer. I ordered the GM part number for the cruise control "kit" for vehicles with steering wheel radio controls.
    Effectively it's a $300 new steering...
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    It's the future, any possibility of being able to...

    It's the future, any possibility of being able to do it in HPT yet?
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    Enabling cruise control for 2015 LS cruze

    Is it possible to use hptuners to enable cruise control after putting on the factory switches or is that a dealer thing/bcm.
  16. What are my options to run a 2011 LHU on a dyno?

    I've got everything done but the software, I went to use HPTuners to disable VAT's as I have done with so many v8's in the past to find out that the 2011 LHU isn't supported :doh: . Any suggestions?...
  17. Not going to spend the $100 to unlock the pcm...

    Not going to spend the $100 to unlock the pcm just to get the fan's working. Like I said, he'll put a rocker switch in for them.
  18. Bump for the same problem but on a stock '01...

    Bump for the same problem but on a stock '01 impala of a friend.

    I can turn on the fans low and high with the vcm controls, but the engine will get up to 230*+ and the fans will never come on....
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    What about 2011 Buick Regal LHU?

    What about 2011 Buick Regal LHU?
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    Can't wait to try it, can I now: 1) modify EGR...

    Can't wait to try it, can I now:

    1) modify EGR tables?
    2) Do basic code reads on any obdII vehicle?
    3) Change OS?
    4) Have the credits stay with the vehicle?
    5) Change TCC lockup temp?
    6) I'm...
  21. I think what can happen is that if you have a...

    I think what can happen is that if you have a laptop power supply that bonds the dc ground to the neutral side of the plug, and then you use an inverter that dose the same but doesn't care which pin...
  22. EFILive?

    EFILive?
  23. I've got CAT protection shut off. A three way...

    I've got CAT protection shut off.

    A three way catalyst requires CO, UBHC's, and NOx to operate. Without the needed CO or HC's to burn, the catalyst can't maintain the temperature it needs to...
  24. Still have stock cat setup but they shut off...

    Still have stock cat setup but they shut off completely at 17:1 or so :D

    I'd looked at adding a coolant temp override switch to do it, but hadn't thought about using the PE table. That sounds...
  25. I'd thought about that and would like to try it....

    I'd thought about that and would like to try it. I guess I'm still a little leery because I don't fully understand how the damage is caused with the power inverter. Do inverters just call it ac...
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