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    $8D 7730 Other P4's

    Does anyone know if the 1228253 From Buick, Olds, Pontiac can run $8D ?
    Pictures appear to match a 7730 harness connectors, but I do not find it on any cross reference.
    Has no one tried it yet?
    ...
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    I have a '94 GMC with a 6395 $OD stock. So they...

    I have a '94 GMC with a 6395 $OD stock. So they are not 4l80 specific.
    95 model year introduced PWM controlled TCC. run the bin that matches your transmission.

    VE, or Volumetric Efficiency, is...
  3. Thread: Hi gearheads

    by ralmo94
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    Nice to see another l29

    Nice to see another l29
  4. 2nd lockup is great, when setup correctly it can...

    2nd lockup is great, when setup correctly it can seem like another gear on acceleration. When towing ( might not pertain to you ) gm testing on proving grounds determined that torque multiplication...
  5. The input I have is, I would use factory stuff vs...

    The input I have is, I would use factory stuff vs aftermarket. Especially if you are going to run injection.

    Learning curve shouldn't be terrible. Just don't adjust anything you don't need to,...
  6. Everything you shown looks good, but I feel it...

    Everything you shown looks good, but I feel it should be clarified in case not already understood, what you have is an IAT, or intake Air Temp, Not a MAT, or Manifold Air Temp. If you get the...
  7. The argument about may vs iat was that as fuel is...

    The argument about may vs iat was that as fuel is atomized it takes heat and can cool I don't imagine faster reaction time would matter that much, but I don't know.
  8. Have you reviewed to see if it reported a...

    Have you reviewed to see if it reported a different temp when lean compared to when rich?
    What research I have done on the subject says tbi should use a MAT instead of an IAT, due to the fact that...
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    First step is generally to fail the MAF sensor so...

    First step is generally to fail the MAF sensor so it runs speed density and dial in the VE table. Perhaps target 1 or 2% rich then turn MAF back on and dial in the MAF airflow table. If you have...
  10. Stupid question, not using an inverter are you?

    Stupid question, not using an inverter are you?
  11. Where are your sensor grounds? If they are on...

    Where are your sensor grounds? If they are on the thermostat housing, consider moving to the block or head.
    That's all I got.
  12. Plugs wires rotor all on good shape? What does...

    Plugs wires rotor all on good shape? What does she AFR or O2 sensor do when it happens, what is the timing doing when it happens?
    Have you tried reviewing a data log with the EKG type lines to look...
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    I think he's using an ebl what's up display. ...

    I think he's using an ebl what's up display.

    Just in case anyone didn't know, to take a screenshot on a windows computer you can [control]+[print screen]. Then open Ms paint and paste clipboard,...
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    I would fix the mechanical issue with exhaust...

    I would fix the mechanical issue with exhaust hitting before being able to trust the sensor. If it's real knock you need to adjust your tables.
    So you are saying that was knock counts with all...
  15. Trimalyzer is a program for analyzing data logs a...

    Trimalyzer is a program for analyzing data logs a member on here, Steveo, wrote. It is pretty cool because you can use it to combine more than one data log and makes tuning ve a copy paste affair.
    ...
  16. Have you filed in your idle ve?with trimalyzer...

    Have you filed in your idle ve?with trimalyzer you can filter for idle flag and get it dialed in pretty easy only using data from when it's running off of the idle ve table. If you put an AFR error...
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    Great. Does it go lean wen it surges, or is it...

    Great. Does it go lean wen it surges, or is it something else.
    Can you confirm vss sensor pulse count, gear ratio and tire size
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    Any updates?

    Any updates?
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    Look at the thread I found on performance trucks...

    Look at the thread I found on performance trucks regarding injectors.



    https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/flow-rate-8-1-injectors-344873/

    Look at...
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    Should be able to pull injector settings from a...

    Should be able to pull injector settings from a 8.1 truck bin.
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    I thought this was an 0411? P01? They are...

    I thought this was an 0411? P01?
    They are percent 0 being no trim. Are we talking about a 128 BLM system?
    Did I get lost?
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    If you have different injectors than stock that...

    If you have different injectors than stock that needs to be addressed before anything else.
    The main thing you need to know is lb per hr at the fuel pressure you are running.
    Are the marine...
  23. Thread: O2 Sensors

    by ralmo94
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    Loose threads definitely could cause a bad signal...

    Loose threads definitely could cause a bad signal path.
  24. I know some of the buy back stuff the grounds got...

    I know some of the buy back stuff the grounds got moved to the head.
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    Also if you go that route unless you go DIS, you...

    Also if you go that route unless you go DIS, you don't need a crank trigger.
    You could also run custom code, such as s_aujp, or code 59
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