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  1. Replies
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    If you just want to put your original tune back...

    If you just want to put your original tune back in , then my son in Perth has a efilive cable as well , or I am in Perth once a month tuning if required.
  2. If you encounter the bug the injectors shut off...

    If you encounter the bug the injectors shut off completely and go very lean for a instant , the cure is easy , add 1 to the whole VE table and recalculate the co efficients.
    Only occurs mafless...
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    Its locked from the factory , what efilive and...

    Its locked from the factory , what efilive and the other tuning tools is technically illegal as they unlock them to allow you to tune them.
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    yes as long as you save the tune then reload it...

    yes as long as you save the tune then reload it back into efilive
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    It does make a mess of it but if you save the...

    It does make a mess of it but if you save the previos iteration of tune , then copy and past the old VE table in the recalculate it works fine , one point is you need to close and then open the tune...
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    Retard timing heaps and throw heaps of fuel in ,...

    Retard timing heaps and throw heaps of fuel in , basic causes the combustion to happen in exhaust rather than combustion chamber .

    Although I expect that vid is a setup with LPG injection into...
  7. Ther is a bug in the GM code that shoots to a...

    Ther is a bug in the GM code that shoots to a incorrect zone , by adding 1 to every value in the VVE table EFILIVE recalculates the coefficients and corrects the bug.
  8. Thread: Injectors

    by Delco
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    6,236

    It may help but some of the issue is how the pump...

    It may help but some of the issue is how the pump is fed.

    Far better to use the original pump to feed a swirl pot at low pressure and then use a decent pump setup to supply the engine , clever...
  9. Thread: Injectors

    by Delco
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    6,236

    Looking at the logs I would be checking fuel flow...

    Looking at the logs I would be checking fuel flow and pressure at the top end of the run , std pump is very average at best , VZ is actually worse than the early ones.
    At the boost level you are at...
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    I use my own custom version OS that 12900005 was...

    I use my own custom version OS that 12900005 was based off , but I have seen the lock in pe mode on a stock OS after exiting the lean cruise routine. GM quite commonly have faulty code - such as the...
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    Never had a issue with lean cruise , there was a...

    Never had a issue with lean cruise , there was a problem on a VY calibration that does what the guys on the LS1 forum talked about , I found if I used the right base calibration it functions...
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    Sound like the guru is trying to tune while still...

    Sound like the guru is trying to tune while still running closed loop which will never work , turn off closed loop then tune the VE table properly , then if you desire turn closed loop back on and...
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    Gotta agree - self proclaimed po tuner he is not....

    Gotta agree - self proclaimed po tuner he is not.

    When I say calibrate wideband I mean calibrate the pid voltage function against a know high end wideband or a gas chamber so that what the...
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    And why would you trust a narrow band O2 that can...

    And why would you trust a narrow band O2 that can be out quite a bit at closed loop.

    like any tool a wideband needs to be calibrated , and checked against a proper high quality unit.

    All too...
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    Didnt know there was a limit , I clear my logs...

    Didnt know there was a limit , I clear my logs once a regularly when I do the backup , just looked and I am on log_1468 at present so there may be a setting in properties you need to change.
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    You need to log inj pulse width , and the factory...

    You need to log inj pulse width , and the factory O2 sensors for a sanity check.

    Do you have the wideband directly connected to a good 12V source and a good earth ? a cig lighter socket is...
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    In effect it is closed throttle spark not just...

    In effect it is closed throttle spark not just idle spark , used to help bring the engine down to idle and when coasting , later calibrations split this up further with coasting spark.

    With ETC...
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    looks to be the trucks ( that dont traditionally...

    looks to be the trucks ( that dont traditionally have PE mode ) that are having the issues , done a lot of car combos and dont see this issue at all.
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    63lb injectors are never going to flow enough...

    63lb injectors are never going to flow enough fuel to make 1000 rwhp , been there a number of times and you will a lot larger to do it , we use a injector driver box to drive 8 big low impedance...
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    Yes you can but remember we dont live in a ideal...

    Yes you can but remember we dont live in a ideal world where you have total control of the atmosperic conditions.

    When I did OEM engine calibrations to do the base calibrations we used to have...
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    18 deg though is a shit load of timing for a 122...

    18 deg though is a shit load of timing for a 122 setup , would be looking more at 14 deg myself
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    Thats a dangerous thing to do .

    Thats a dangerous thing to do .
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    See how it lean at 70kp all the time , look at...

    See how it lean at 70kp all the time , look at frame 7943 , and the map of the log , the point where you start to have the problem is always lean.

    Once it is lean on the transition you will get a...
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    Set B3644 to 1

    Set B3644 to 1
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    I can see why the maf wouldnt have the issue...

    I can see why the maf wouldnt have the issue given the setup , there is such a long intake tract from when the air moves past the maf to when it enters the engine I would expect there to be a rich...
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