Search:

Type: Posts; User: 5FDP

Page 1 of 20 1 2 3 4

Search: Search took 0.03 seconds; generated 24 minute(s) ago.

  1. Replies
    2
    Views
    96

    I highly suggest you stop going full throttle,...

    I highly suggest you stop going full throttle, you're going to hurt this engine.

    The fuel trims are all over the place, mostly very positive, which means very lean. At full throttle the injector...
  2. Replies
    37
    Views
    686

    It would benefit you to put in the correct...

    It would benefit you to put in the correct injector data, just saying. Will need more base running airflow too.

    Still running a MAF or going speed density?
  3. Replies
    2
    Views
    110

    It's not possible to run DBC on anything like a...

    It's not possible to run DBC on anything like a E67/E38 or newer. Unless somebody knows different.

    Going to need to install the DBW again and matching throttle pedal to use a stock pcm.
  4. Replies
    10
    Views
    278

    Good info. Still need the tune and if you have...

    Good info.

    Still need the tune and if you have logs.
  5. Replies
    2
    Views
    108

    You can't tune around a mechanical problem. If...

    You can't tune around a mechanical problem. If the EGR is leaking you need to either fix it or delete it and turn off the stuff in the calibration.

    Also you should check your fuel pressure with a...
  6. Replies
    28
    Views
    814

    You can do all your part throttle stuff for now...

    You can do all your part throttle stuff for now until you get a wideband hooked up and some bigger fuel injectors. Then you can retouch the MAF/VE and work on the rest of the airflow model.
  7. Replies
    28
    Views
    814

    Yes it does. From the factory they will blend the...

    Yes it does. From the factory they will blend the MAF/VE together up to about 4,000rpm. You can see that setting in the dynamic airflow tab. From there it's technically MAF only above that.
  8. Replies
    28
    Views
    814

    Yes, that is correct.

    Yes, that is correct.
  9. Replies
    10
    Views
    278

    Post the current tune you are using and any logs...

    Post the current tune you are using and any logs you have.

    More details on parts used too. Still using stock injectors? What type of fuel system, return or returnless?

    Is it drive by wire or...
  10. Replies
    28
    Views
    814

    Being a 99 and I assume a 99 computer, it has two...

    Being a 99 and I assume a 99 computer, it has two VE tables. In speed density it only uses the secondary VE table. If you make changes to the primary table, you'll see zero change. But you still need...
  11. Thread: 2009 Tahoe

    by 5FDP
    Replies
    2
    Views
    371

    Never flash a tune that isn't yours into your...

    Never flash a tune that isn't yours into your computer.

    Flash back to a previous file and see if it runs. If it does just use the compare feature to copy over differences.
  12. Replies
    3
    Views
    104

    What fuel are you running? Does it have a flex...

    What fuel are you running? Does it have a flex fuel sensor or is it using virtual flex fuel?

    What is your fuel pressure?

    You'll want to look for intake leaks or exhaust leaks pre o2 sensor.
  13. Gotta post the tune and logs.

    Gotta post the tune and logs.
  14. Replies
    2
    Views
    106

    Terrible camshaft choice without a blower. So...

    Terrible camshaft choice without a blower. So many better camshafts that will actually make power down low.

    Always post your tune and logs. And I hope you have a wideband on this engine.
  15. Replies
    22
    Views
    718

    You need to post some data logs so we can see...

    You need to post some data logs so we can see what is going on.

    We also need to know what supporting mods means. Is that headers and full exhaust, stock intake manifold or aftermarket? Stock...
  16. Raise the idle rpm by 100. These engines always...

    Raise the idle rpm by 100. These engines always seems to be unsteady when they try to idle at 500-525rpm. I always raise them to 625-650 and it really smooths them out, some people even do 700rpm.
    ...
  17. Replies
    2
    Views
    83

    Change the gear ratio in the gear/tire wizard...

    Change the gear ratio in the gear/tire wizard under the edit tab, check the box to auto scale the transmission settings and that is it.
  18. What kind of fuel are you running? In the log...

    What kind of fuel are you running?

    In the log the commanded air fuel ratio is about 13.5, meaning it's running around 20% alcohol content. If you are running regular 87 octane with E10, that means...
  19. Replies
    10
    Views
    171

    Like I said earlier, the VIN means nothing unless...

    Like I said earlier, the VIN means nothing unless it's for emissions related reasons, The computer doesn't care nor does the engine care that it says 5.3 but it's really a 4.8. The calibration has to...
  20. Replies
    10
    Views
    171

    The VIN literally means nothing unless you have...

    The VIN literally means nothing unless you have some sort of strict emission requirements in your state that require everything to match.
  21. Replies
    10
    Views
    344

    You can make it more responsive but there isn't...

    You can make it more responsive but there isn't any real magic horsepower to be gained, nothing you are going to notice for towing anyway. You need to actually mod the engine, like different camshaft...
  22. Try turning off burst knock, currently it's set...

    Try turning off burst knock, currently it's set completely wrong. It's set to 0.00 meaning it's always on and the most responsive. Set it to 7.999 and that will turn it off. Burst knock can spike on...
  23. Replies
    22
    Views
    718

    Post the tune you have now.

    Post the tune you have now.
  24. Replies
    13
    Views
    438

    I believe the 6L90e don't have a thermostat from...

    I believe the 6L90e don't have a thermostat from the factory in heavy duty trucks, the 1500's all have it though.
  25. Thread: E85 Flex fuel kit

    by 5FDP
    Replies
    2
    Views
    167

    There should be a flex fuel tab in just about all...

    There should be a flex fuel tab in just about all the calibrations, you didn't post your file though.
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4