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Type: Posts; User: MORLOK

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  1. Replies
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    I run a MS3Pro for port injection. It has Flex...

    I run a MS3Pro for port injection. It has Flex fuel built-in so I only had to tap into my stock flex sensor wire to get the signal to the MS3Pro. I also have a Wideband tied into the MS3PRO so it can...
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    You can do that, and I think most people do. The...

    You can do that, and I think most people do. The thing to be careful with is that the computer uses cylinder airmass for the spark table. If the MAF curve is flat, your cylinder airmass will drop as...
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    I have not heard of anyone being able to control...

    I have not heard of anyone being able to control a Wastegate or BOV with the stock computer.
    I took a few runs at it, but I was never fully successful.
    The first thing I did was wire in a new...
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    My truck used to do this and it would go away if...

    My truck used to do this and it would go away if I failed the MAF. I think it happens when the MAF and VVE don't agree. I think it could also be caused by the MAF and throttle airflow tables not...
  5. I am guessing this only happens on part throttle...

    I am guessing this only happens on part throttle and not WOT?

    I had this exact problem on my truck. The only way I could fix it was to run a boost controller that can control based on pedal...
  6. My truck did the same rich idle thing. Notice the...

    My truck did the same rich idle thing. Notice the STFT goes to 34% both banks, I don't know why it does this. It went away when I disabled LTFT and Idle LTFT. Since then I have turned all LTFT back...
  7. Mast also makes port injection intakes. Really...

    Mast also makes port injection intakes.
    Really hard to beat for the price, comes with intake, injectors, and rails.
    https://www.mastmotorsports.com/collections/factory-mast-intake-manifolds

    I...
  8. Replies
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    1,214

    Did you run the gear/tire wizard? That would be...

    Did you run the gear/tire wizard? That would be the place to start. If I did my calcs right, 5.38's on 40's is actually taller than 3.73 on 32's, which is likely the stock calibaration. The computer...
  9. Replies
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    2,686

    Here is my setup. The barb connection on the...

    Here is my setup.

    The barb connection on the bucket is just not very good for grabbing a rubber hose. You can see the rivet for the bucket, I have another on the back.
    I think the 'pulse...
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    2,686

    That is the table I was talking about. I don't...

    That is the table I was talking about. I don't know if it will make a difference or not(or if any of the fuel pump minimum tables do anything). Just maybe at startup. But since we can't seem to...
  11. Replies
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    I ran the hellcat pump for a while. Seemed to...

    I ran the hellcat pump for a while. Seemed to operate fine with stock parameters. But twice, twice!, on startup, it blew the hose connection off the top of the fuel pump leaving me stranded. Part of...
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    Does the ECM need to be unlocked to read out the...

    Does the ECM need to be unlocked to read out the file? I know someone with a 2019 Tahoe that I might be able to pull a file from.
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    You shouldn't need to change anything in the tune...

    You shouldn't need to change anything in the tune for the breakout. Your solder connection seems solid and you used a 1-Bar map, so you might have connected a wrong wire. I wired a breakout myself...
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    In your log the MAF is showing 3.5 lb/min airflow...

    In your log the MAF is showing 3.5 lb/min airflow at idle and your throttle blade is at 23%. My l83 runs at 8% throttle and .7 lb/min airflow. The ?vacuum leak? is coming from the throttle blade. For...
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    Your tune still has the stock L83 throttle info...

    Your tune still has the stock L83 throttle info in it under Airflow > Electronic Throttle.
    I think the max area for a LT4 throttle should be 5,074 (based on a tune I have from a 2015 Z06).

    The...
  16. My truck used to do this too, but I don't...

    My truck used to do this too, but I don't remember what I did to fix it.
    Post a tune and log and I can check it out.

    Did you do the BARO breakout?
  17. Both the MAF curve and VVE look very rough. My...

    Both the MAF curve and VVE look very rough. My VVE tops out at 2,400 and yours is up at 3,800 (must be some amazing ported heads you have). Plus your MAF is showing 72 lb/min air at only 4 psi boost,...
  18. Assume you mean tuning MAF and VVE at the same...

    Assume you mean tuning MAF and VVE at the same time? Yea.. kinda.. I started messing with it after my VVE and MAF were already pretty good. Looking back through my math parameters, it looks like I...
  19. For drivability I figure tuning in CL with the...

    For drivability I figure tuning in CL with the stock O2's is better. Unless you think the headers mess up the readings. I see both logs are in OL, my truck never ran that great in OL and I didn't get...
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    Most of the stuff in my last post you probably...

    Most of the stuff in my last post you probably already knew, and are way ahead of me on this, but I am still intrigued by the puzzle and have some more thoughts.
    I pulled up your tune, and looked...
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    ABS/TCS is controlled by the BCM which HPtuners...

    ABS/TCS is controlled by the BCM which HPtuners does not modify. Wire in a switch to cut power to the steering wheel position sensor under the dash to kill stabilitrack, then just turn off traction...
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    Things to check. -Keep Virtual Torque stock,...

    Things to check.
    -Keep Virtual Torque stock, should only need to change that with a cam upgrade.
    -Dial in MAF
    -Dial in VVE
    -You might also need to adjust the External Load Table. Log Zero pedal...
  23. I can do a standing burnout in my truck without...

    I can do a standing burnout in my truck without issues. Attached is my tune to compare, i didn't see any important differences compared to yours.

    Did you physically disable Stabilitrac? I wired...
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    I don't think it is possible, but not sure why. I...

    I don't think it is possible, but not sure why. I have 6l80 on my truck and the lowest 1-2 shift point I can go to is 9mph. It might be a BCM thing, or just other code in the TCM.
    The only way to...
  25. Since you mentioned you are a total noob, I think...

    Since you mentioned you are a total noob, I think we should step back and give you the full picture of what you are up against here.
    The LT platform uses Gen V software which is Torque Based, and...
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