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  1. sluggish any opinions on the tuning i did?

    4l80e swap into 07 avalanche seems to have lost power low end99747
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    4l80e swap

    I swapped a 4l80e into my 07 avalanche. it seems slow and sluggish changed a few things but wanted to get some opinions before I screwed something up. thanks
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    shift mode unknown:8

    Swapped 4l80e into my 07 avalanche. Trying to address some shift points and such. Cant log trans shift mode. It gives me unknown:40 on the scanner. any ideas if Ive missed any thing? This is my tune...
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    Is it better to buy 08 express t42 tcm or reflash...

    Is it better to buy 08 express t42 tcm or reflash current t42?
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    Seeking the same knowlege got all the install...

    Seeking the same knowlege got all the install done today now wiring and programming.
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    4l80e tune

    Will a 2005 4l80e tune work in a 2007 new body style computer? Is the a difference between 2005 and 2008 4l80e transmission tunes? Thanks for helping
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    it went into closed loop after it warmed up...

    it went into closed loop after it warmed up towards the end of the file
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    what do ya think? 79167

    what do ya think?
    79167
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    2ls1 i owe you a huge thank you and a 12 pack....

    2ls1 i owe you a huge thank you and a 12 pack. your idea about the o2 sensor was dead on found 3 pin holes on their welds. and it calmed way down
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    if you have time to check them out any advice...

    if you have time to check them out any advice would be greatly appreciated
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    my pump is a carter p5000 max pressure 75 free...

    my pump is a carter p5000 max pressure 75 free flow rate 45 gph. is that not a strong enough pump?
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    tried replacing regulator no change to speak of...

    tried replacing regulator no change to speak of on pressure. ordered another today is there another way I can command more fuel pressure? sorry still trying to learn
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    swapped injectors over its a flex fuel engine 40...

    swapped injectors over its a flex fuel engine 40 at idle with vacuum 48 with out

    79088
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    one other question am I running a rich of motor...

    one other question am I running a rich of motor damage with this condition. this problem started after exhaust was installed
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    p0174 only

    need some help chasing this down please. the car is an 2004 tahoe ls 5.3 swap into my sons 69 firebird. mods modified cold air intake , headers dual exhaust. tried to keep it simple for now. problem...
  16. Thread: no crank

    by speedfreak636
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    last one tonight

    last one tonight
  17. Thread: no crank

    by speedfreak636
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    fuel pump did cycle no fuel in tank so I pulled...

    fuel pump did cycle no fuel in tank so I pulled its realy for tonight. deleted the prndl also no change... chasing wiring in the morning
  18. Thread: no crank

    by speedfreak636
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    6
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    1,753

    took off a few more things no change

    took off a few more things no change
  19. Thread: no crank

    by speedfreak636
    Replies
    6
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    1,753

    no crank

    my son and I are building his first car. 1969 firebird mild resto mod. 2004 5.3 with its harness underhood fuse block and 4l60. read it last night removed vats rear o2s and that's about it. trying...
  20. Did you check all the pins in the connector? Some...

    Did you check all the pins in the connector? Some scanners use different ground pins in it. Just an idea
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    It threw 0140 code. That was when I started in...

    It threw 0140 code. That was when I started in the path I took replacing the bcm and programing it
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    Bought new body control module installed it and...

    Bought new body control module installed it and had dealer flash bcm. All a pears normal. Is there any chance I caused this? Has anyone heard of this happening before? Any knowledge is greatly...
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    Agreed was just going throught the motions...

    Agreed was just going throught the motions learning the process before I changed anything
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    5.3 engine

    5.3 engine
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    Chevy avalanche 2007

    Chevy avalanche 2007
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