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Type: Posts; User: Mbrowning

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  1. Replies
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    That side looks lean, but what about the raw fuel...

    That side looks lean, but what about the raw fuel smell? Sounds like a high pressure leak to me.
  2. I looked at your file. It appears you have an...

    I looked at your file. It appears you have an internal transmission or wiring problem. The calibration appears normal to me. Good luck and keep us updated.
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    I believe all you have to do is disable exhaust...

    I believe all you have to do is disable exhaust camshaft phaser. There is an enable/disable tab for four camshafts. Since the 5.7 only has one camshaft, three of the tabs are set to disable from the...
  4. Thread: No Spark E92

    by Mbrowning
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    violet/dk blue- ignition black ...

    violet/dk blue- ignition
    black -ground
    blk/gray -coils 2,4,6 low ref pin 16 at ecm (brown/white)
    blk/dk blue -coils 1,3,5 low ref pin 31 at ecm (blk/dk blue)

    Try measuring...
  5. Thread: No Spark E92

    by Mbrowning
    Replies
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    251

    You have verified power and ground to the coils...

    You have verified power and ground to the coils i'm sure. But to double check, I would find a 12 bullb, (not test light but something that draws more current), and test across the positive and...
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    I noticed that at zero airflow, your MAF sensor...

    I noticed that at zero airflow, your MAF sensor calibration is showing frequency. I believe at zero airflow there should be zero frequency. I wonder if maybe the fuel curve at idle may be a little...
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    I haven't tried that so i'm not sure. I am sure...

    I haven't tried that so i'm not sure. I am sure someone on here knows. It sounds like you have an erratic signal from one or the other. You should get two crank counts for every single cam count. I...
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    Under torque management, try maxing out the...

    Under torque management, try maxing out the maximum torque vs rpm tables. I believe both tables have to be maxed out or ecu will pull power. Hope that helps!
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    Are you showing a good cam signal? Did the crank...

    Are you showing a good cam signal? Did the crank relearn complete?
  10. What ecu are you using?

    What ecu are you using?
  11. The FPCM should handle it fine. I don't think...

    The FPCM should handle it fine. I don't think you'll need to change anything. Let us know how it works out.
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    The scavenging effect will be impaired with the...

    The scavenging effect will be impaired with the increased back pressure. There will be less unburned fuel escaping during overlap. I don't think running a bit lean at cruise will hurt anything,...
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    I guess I should explain the high volt test...

    I guess I should explain the high volt test disable. The MAF cannot compensate for the sudden drop in pressure from a performance based tune. At least that's what the Tuning School books say. I never...
  14. Thread: No Spark E92

    by Mbrowning
    Replies
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    251

    This may help you troubleshoot your "no spark"...

    This may help you troubleshoot your "no spark" condition. Sounds like it most likely is a bad ecm or bad flash if you have crank and cam signals. The following tests will verify whether or not the...
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    Disable "starter fault checks" in operating...

    Disable "starter fault checks" in operating system menu.
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    The most notable change you can make will be the...

    The most notable change you can make will be the cam timing. Easiest thing to do is zero out all three tables. You can add two degrees cam timing on the other end starting at 5000 and step up to 6...
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    The factory set them up to lock at wot because...

    The factory set them up to lock at wot because they have tcc torque limits in place. I would be willing to bet yours is disabled. You will probably end up with a better et. and happier transmission...
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    I noticed you didn't disable the "high volt test"...

    I noticed you didn't disable the "high volt test" in engine diag section. The pcm will pull power if it sees too much of a drop in map. Worth a try.
  19. Thread: 4l80E

    by Mbrowning
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    shift tables

    One of the root causes of your shift can be resolved if you follow this guys instructions. https://youtu.be/imJdP2dzYnQ . Another option would be to download BC trans calculator. (All over the...
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    I've bought the gen III-gen v books and have a 08...

    I've bought the gen III-gen v books and have a 08 avalanche and 17 z71 for daily drivers. I've come up with several different trans and engine tunes for my 17. Not so much the gen 4 avalanche. I...
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    Sticky: Hello everyone. My name is Marshall, from Pine...

    Hello everyone. My name is Marshall, from Pine Bluff Arkansas. I have many years experience tuning and repairing just about anything on wheels. I have a couple tech schools in electronics as well as...
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