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  1. Replies
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    146

    Obviously closed loop will always come back to...

    Obviously closed loop will always come back to stoich, that is what it is suppose to do.

    See what fueling is like with your wideband under load in open loop, that is where you need it to be...
  2. Thread: E38 idle tuning

    by 5FDP
    Replies
    7
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    176

    That tune wants the MAF disabled with the way you...

    That tune wants the MAF disabled with the way you have the MAF fail settings and the dynamic airflow settings.
  3. Does it have open headers? Post the tune as...

    Does it have open headers?

    Post the tune as well.

    Your o2 sensor aren't really working either, bank 2 is unplugged or has a connection issue.


    Make sure that the EGR and AIR is disabled,...
  4. The website still says this, I would think it's...

    The website still says this, I would think it's still true and hope they didn't change it.

    2bar and 3bar MAP - Speed Density (GenIII V8)This enhancement contains the following features:

    2bar...
  5. Suppose he could test that for his. Stick 13...

    Suppose he could test that for his. Stick 13 degrees in the low octane table and see if it runs 13 degrees.
  6. I'd do 5 degrees. Then figure out the knock...

    I'd do 5 degrees.

    Then figure out the knock issue. I'm not a fan of decaps, they don't exactly have the best spray pattern. So it's tough to say if the issue is those, a spark issue, something...
  7. I'd probably just leave it then. Also don't...

    I'd probably just leave it then.

    Also don't mirror the high/low octane tables when you are done. The low octane table needs less timing in it.
  8. Thread: 4.8 to 6.0 swap

    by 5FDP
    Replies
    4
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    67

    Probably a 2,500-2,800rpm stall. You can contact...

    Probably a 2,500-2,800rpm stall. You can contact an aftermarket stall company and go over all the engine details with them and they will help you decide.

    I would suggest 31lb/hr or 33lb/hr...
  9. Thread: 4.8 to 6.0 swap

    by 5FDP
    Replies
    4
    Views
    67

    Yes, start with a 6.0 file. You can copy 6.0 data...

    Yes, start with a 6.0 file. You can copy 6.0 data over into yours pretty easy.

    Get bigger injectors too if you only have 25lb/hr size injectors.

    Do you have a stall converter? You are going to...
  10. Thread: 4.3 to 5.3 swap

    by 5FDP
    Replies
    23
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    1,710

    The computer could still be flashed to a 4.8/M5...

    The computer could still be flashed to a 4.8/M5 truck VIN number, then you'd just have to copy 5.3 data into the tune. Would be really simple to do that.
  11. Replies
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    77

    Anything under 2 degrees for random knock at...

    Anything under 2 degrees for random knock at cruising speeds or on decel I don't even worry about, it harms nothing and people only notice it because it's in the data logs. I'm sure you could mess...
  12. Replies
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    Because the CCM costs credits. Go back to the...

    Because the CCM costs credits.

    Go back to the truck and click read vehicle, then before you read the vehicle click gather information or whatever it says. Only select the PCM and TCM and save that...
  13. Replies
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    80

    I don't have a stock tune to compare with but...

    I don't have a stock tune to compare with but that MAF and VE look stock to me.

    Fueling was for sure not right if they had to slap the PE with so much fuel just to get their desired outcome. Lean...
  14. Replies
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    63

    Power enrichment is way too fat. These are direct...

    Power enrichment is way too fat. These are direct injected engines and not port fuel injection, you can run a much leaner fuel mixture.

    You are commanding fueling that is safe many many pounds of...
  15. Who is Flow Delphi though? What I'm trying to...

    Who is Flow Delphi though?

    What I'm trying to get at is, who did you buy the injectors from and did they come with data?

    Data is what we want. Companies like Deatchswerks, Fuel injector Clinic,...
  16. Who's 60lb/hr injectors and what 2 bar MAP...

    Who's 60lb/hr injectors and what 2 bar MAP sensor?

    I want to make sure that all the injector data is right and that the linear and offset settings for the MAP sensor are correct.

    A log file of...
  17. Change the cylinder volume for the 5.3 engine. ...

    Change the cylinder volume for the 5.3 engine.

    What injectors and MAP sensor are you using?



    There is still lots of little things needed like fueling, power/boost enrichment and timing...
  18. How can we help if you don't provide the tune...

    How can we help if you don't provide the tune file to look at?

    And you didn't list all the parts you used for the AFM delete.
  19. Replies
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    106

    Did you write the tune back to the vehicle after...

    Did you write the tune back to the vehicle after doing that change?
  20. Replies
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    141

    Yeah.

    Yeah.
  21. Thread: E38 idle tuning

    by 5FDP
    Replies
    7
    Views
    176

    Post the tune and logs. Having .80 lambda when...

    Post the tune and logs.

    Having .80 lambda when cold sounds normal for many vehicles, then once over 130 degree coolant temp it will be far closer to 1.00 and go into closed loop.
  22. May require that you write entire a V8 file onto...

    May require that you write entire a V8 file onto the computer.

    In doing your segment swap you also told the computer it's a DBW and not a drive by cable as well. Looks like it was a 5.3 flex fuel...
  23. Thread: tuning school

    by 5FDP
    Replies
    3
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    146

    For some it is and to many others it's not. ...

    For some it is and to many others it's not.

    Really just depends on what you are doing and if this is going to be something you want to maybe run a business off of.

    The backyard mechanic isn't...
  24. That's the problem. If the tuning is asking for...

    That's the problem. If the tuning is asking for such a lean air fuel mixture but the real AFR in the tailpipe is different, the tune is all wrong.

    30+ degrees of timing is cool for a small block...
  25. Replies
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    It's not going to be exactly that simple. ...

    It's not going to be exactly that simple.

    Change the cylinder volume and go back over the entire VE table with your wideband to get fueling correct everywhere. I can see timing adjustments needed...
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