help...efi live screw up....tune wont install truck just cranks over - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 10 (permalink) Old 06-27-2010, 02:35 AM Thread Starter
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help...efi live screw up....tune wont install truck just cranks over

What can i do to reset the pcm n ecm in my truck the efi stoped early in the loading proceedure n wont do nothing now other than say bootloader failed to connect to pcm.....fml

2002 Chevy Silverado 2500hd ec/lb 4x4, efi live with built transmission , k&n intake, Dual 5 inch stacks, intake horn mod, 315/75/16 Kuhmo Road Venture M/T.
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post #2 of 10 (permalink) Old 06-27-2010, 05:03 PM
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I know its a dumb question, but was your key turned all the way forward? I know the first few times I tried to load a tune it wouldnt load because i had the key on, but not all the way forward...

Does the truck still run? I am pretty sure that there is a safety built into EFI that will return it to stock if the new tune doesnt load

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post #3 of 10 (permalink) Old 06-30-2010, 10:30 PM
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Do you have the stock tune? You may have to re-flash the stock tune in, then try flashing the new tune.

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post #4 of 10 (permalink) Old 07-08-2010, 12:26 PM Thread Starter
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thanks but it wouldnt read the ecm...at all...ive used efi a few times i just did something i shouldnt have n now i have a new ecm because of it....lol

2002 Chevy Silverado 2500hd ec/lb 4x4, efi live with built transmission , k&n intake, Dual 5 inch stacks, intake horn mod, 315/75/16 Kuhmo Road Venture M/T.
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post #5 of 10 (permalink) Old 07-08-2010, 11:34 PM
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What did you do exactly? so I know what to avoid, thanks in advance

Aaron the Crazy Canuck
2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, missing muffler/cat, EFILive tuned by Nick at duramaxtuner, MA tie-rod sleeves and Grade C headgaskets
Totalled!! May 2nd 2008-2005 Dodge Ram 3500 laramie: Cummins auto, plain white, rebuilt tranny
1986 Mercury Capri - 5.0L, AOD, shorty headers, acell ignition, Holly street dominator intake, Holly 625 vacuum secondaries carb, Dual glass packs "my little yellow terror"

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post #6 of 10 (permalink) Old 07-22-2010, 03:26 AM Thread Starter
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I just had my computer replaced in my truck due to an efi live screw up...ill take the blam....truck works n runs fine stock...when i went to install a new tune on it says either bootloader rejected ecm returned to normal try again, or it says cant read ecm...it wont tune the engine or the transmission...i get the say responses...

2002 Chevy Silverado 2500hd ec/lb 4x4, efi live with built transmission , k&n intake, Dual 5 inch stacks, intake horn mod, 315/75/16 Kuhmo Road Venture M/T.
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post #7 of 10 (permalink) Old 07-22-2010, 05:34 AM
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Efi was locked to your old ecm, each ecm carries a different serial # and efi locks to that number, you may have to use your second lisence on the new ecm

Aaron the Crazy Canuck
2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, missing muffler/cat, EFILive tuned by Nick at duramaxtuner, MA tie-rod sleeves and Grade C headgaskets
Totalled!! May 2nd 2008-2005 Dodge Ram 3500 laramie: Cummins auto, plain white, rebuilt tranny
1986 Mercury Capri - 5.0L, AOD, shorty headers, acell ignition, Holly street dominator intake, Holly 625 vacuum secondaries carb, Dual glass packs "my little yellow terror"

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post #8 of 10 (permalink) Old 07-22-2010, 01:15 PM Thread Starter
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i got a new license n locked to new ecm...still wont work

2002 Chevy Silverado 2500hd ec/lb 4x4, efi live with built transmission , k&n intake, Dual 5 inch stacks, intake horn mod, 315/75/16 Kuhmo Road Venture M/T.
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post #9 of 10 (permalink) Old 07-22-2010, 06:17 PM
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Time to call efi customer support, or post your question at www.efilive.com forum, them guys will know what to do

Aaron the Crazy Canuck
2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, missing muffler/cat, EFILive tuned by Nick at duramaxtuner, MA tie-rod sleeves and Grade C headgaskets
Totalled!! May 2nd 2008-2005 Dodge Ram 3500 laramie: Cummins auto, plain white, rebuilt tranny
1986 Mercury Capri - 5.0L, AOD, shorty headers, acell ignition, Holly street dominator intake, Holly 625 vacuum secondaries carb, Dual glass packs "my little yellow terror"

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post #10 of 10 (permalink) Old 07-25-2010, 02:09 PM Thread Starter
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i was in a hurry originally and just started to tun the truck n realized i forgot to chang somethin...tire size n rev limiter....so i stoped the upload into the truck...knowin better that i shouldnt....then it left the computer unrecoverable....wont do that again...but now my new comp wont take the tune i can read the comp but it wont upload...

2002 Chevy Silverado 2500hd ec/lb 4x4, efi live with built transmission , k&n intake, Dual 5 inch stacks, intake horn mod, 315/75/16 Kuhmo Road Venture M/T.
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