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  1. Replies
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    A late New Year's greetings, and a little...

    A late New Year's greetings, and a little feedback from a car enthusiast.

    I was building up my 96 impala ss clone, with Eforce supercharger and Ls3 in 2011. I was using a Ls1 2002 pcm and 4l60E...
  2. Thread: IAT Sensor Cal

    by tor1965
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    12
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    5,544

    I am running an Edelbrock e-force supercharger...

    I am running an Edelbrock e-force supercharger with a 2002 gen lll controller. The supercharger has a tmap sensor with the same scaling as the ls3 iat sensor. It would be wery nice if someone could...
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    The V2 is bootblock 2.07.03 and firmware 2.07.22...

    The V2 is bootblock 2.07.03 and firmware 2.07.22

    The V 7 is 7.5.7 180

    12192
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    Yes it came back from the dead. This is a...

    Yes it came back from the dead.
    This is a custom install with no body computer or other equipment on the data bus. I had at least 15 flashing attempts with the v2 before I tryed with the computer. ...
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    My 2002 ls1 pcm went dead.

    I was trying to flash in a new cal in my pcm this morning before I went to work. I was using v2 without my computer attached.
    There was a fault message about the boot loader and after that the pcm...
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    Limits for Cos 5

    Hi
    I am running cos 5 (2002) (156) on an ls3 engine with e-force supercharger. After the supercharger install the timing and the fueling are acting strange. The timing is dropping dramatically in...
  7. All the time I have done auto ve calc vet or auto...

    All the time I have done auto ve calc vet or auto maf I have experience that a change in IAT has changed the ve or MAF readings.
    I know we have the blending table for IAT and ECT and a fault here...
  8. Hi yonson Thanks for a very informative...

    Hi yonson

    Thanks for a very informative answer.
    I think you saved me for a lot of trouble. I was using the values from the Ford sensor in my tun.
    After yours information, that there is two...
  9. TMAP sensor on E-force supercharger and COS 5

    Hi

    I am installing an E-Force supercharger on my LS3 engine. The engine is running
    on COS 5 (156). I wonder if I can use the IAT signal from the TMAP sensor that is in the supercharger housing. ...
  10. Sticky: You must use the same unit g*/kpa or % in the...

    You must use the same unit g*/kpa or % in the tun ve table and in the log table.
  11. Hi Joecar So when it says “1. Disable MAF:” it...

    Hi Joecar
    So when it says “1. Disable MAF:” it means by the tun, not to physically unplug it.
    That makes sense.

    Is it code P0101 that confirm that the maf is correctly disabled?

    Thanks
    ...
  12. Question regarding the Sticky: Calculating MAF Airflow From VE Table..CALC VET In Rev

    I don’t understand this “Sticky:Calculating MAF Airflow From VE Table..CALC VET. In Reverse”.

    The first thing to do is to disable MAF. And go in speed density “mode”, (I can chose to run...
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    Sorry for simplifying to mush. The car is...

    Sorry for simplifying to mush.
    The car is originally a 91 caprice and for now it is just the interior that looks like the original car.
    It have an Gm performance parts LS3 engine, 2002 f-body...
  14. Replies
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    3,521

    Cos5 boost and MAF

    Hi
    I am preparing for an E-force supercharger on my LS3 Impala clone. I have used the 12212156 os, and have now switched to cos5.
    Can I use the MAF sensor on this os when using the boost ve table...
  15. Sticky: Do i need to change the calc_pids.txt for changes...

    Do i need to change the calc_pids.txt for changes in the cylinder volume?(other then ls1).
  16. Replies
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    Keypad

    Hi
    My keypad is kind of loose along the left edge. It is not yet a problem, but if something gets under one of the buttons the button can hang. I am pressing the keypad down whenever I use the v2...
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    Hi I know this isn’t off any help, but I am in...

    Hi
    I know this isn’t off any help, but I am in the same situation. My lc1 show about 14,2 when the engine runs closed loop. This is no matter what the fuel trim is. I was so frustrated that I...
  18. Thread: Ls3 problems

    by tor1965
    Replies
    9
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    4,127

    Hi Jocar and thanks for the answers. CALC.VE...

    Hi Jocar
    and thanks for the answers.

    CALC.VE was selected on my laptop in addition to the calc.ve_table. It is now removed to prevent mix up :-)
  19. Thread: Ls3 problems

    by tor1965
    Replies
    9
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    4,127

    Hi Jocar Yes the wideband are showing rich. I...

    Hi Jocar

    Yes the wideband are showing rich. I doubted these readings because it showed leaner earlier without any changes. (After my mind) :angel_innocent:

    How much difference can be tolerated...
  20. Thread: Ls3 problems

    by tor1965
    Replies
    9
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    4,127

    Ls3 problems

    Hi I need some advice
    I swapped an ls1 for a new gm performance parts Ls3 this summer. I use the156 os and have built up my tune when braking in the engine. First auto ve then calc ve, last dialing...
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    Throttle cracker

    When thinking thru ought this deceleration situation I realized that when I built the tun I used a mix of tables from ls3 Corvette Camaro 2002 and ls6 zo6. Most of the idle stuff was from z06 because...
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    Hi joecar Thanks for the very informative...

    Hi joecar

    Thanks for the very informative links. I have changed back to recommended injector date from 2008 ls3 corvette, and are doing auto ve with wideband and maf disconnected. The ve table...
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    injector flow rate tables

    After playing around with my tun I realize that tuning a pcm always are compromises between theory and practical experience. There are so many unknown factors in those operating systems that the easy...
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    The engine is in the car and it has been driven...

    The engine is in the car and it has been driven for about 1500 Km. The stock ls3 map sensor readings seam to be ok with the settings from the 2010 Camaro tun file.
    I have done some work on the ve...
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    Decimal button! So easy and yet so impossible to...

    Decimal button! So easy and yet so impossible to figure out :doh2:

    Thank you, Erik.
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