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!!!!dbw help please!!!!!!!!!!!

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Old Apr 11, 2011 | 02:41 PM
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Default !!!!dbw help please!!!!!!!!!!!

first I have searched and cannot find what i need. soo please help if you can.

I have a ls1 from a 2000 or so ws6,

Im making it dbw, to keep stock cruise functions and so on. I need to know what tune i need to get it to run, or what i need to change. I have a t56 from a 2005 ssr due to its excellent gearing. only have vss wired to it, reverse lockout is wired as a seperate circuit.



here is what I have.

throttle body



throttle pedal







pcm with tac module taped to it, I believe the ledal and tac are from a 2002 truck or so, not sure!!!!???!! Its all black with a metal back plate





and pcm




what needs to be done
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Old Apr 11, 2011 | 03:43 PM
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Do you have any wiring harness?
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Old Apr 11, 2011 | 05:46 PM
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2002 TACC modules are all plastic, IIRC. Yours is likely a 2003-2005 as it's got a metal mounting plate. They are not interchangeable with the throttle body you have as it ooks like a 2002 Vette TB. PCM, TB, TACC module and PCM file must all match. Mis-match the parst and it will not function properly.
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Old Apr 11, 2011 | 10:51 PM
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i started with the painless 60219 which is a truck harness for ls1 auto. I converted it to a m6 harness.

I am working with efi connections and he is insisting it is a vette pedal with a truck app sensor reloacated? but here (http://www.chevythunder.com/drive_by_wire.htm#1997-2005 Corvette, 2002-2005 Truck Connectors) it says its the same?


so all i need is a tac now?
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Old Apr 12, 2011 | 04:37 AM
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Your TB is definitely 2002 Vette. Is there a service number sticker on the TACC? Are you running a 411 PCM and what file is in it?
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Old Apr 12, 2011 | 05:14 AM
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Default many options.

That is a vette TB, and cannot be used with the throttle module from a truck.
You need the wiring from a vette and the 512 MB ECU with the vette software. That's why I asked if you have any wiring.

Or you can change the TB and re wire your wiring harness, add the TP and IAC sensor. TB from a 2002 Camaro or a 85mm after marked and a tune for mechanical TB

Or you can use your TAC module and pedal and add the 1mb ECU from a truck and add the electric TB from a 03 Tahoe.
This setup will also support the new LS7 TB with the X-Link. Ls7 is the 4 bolt TB and is cool if you planing to do some upgrade and will of course suport your use of cruse controll.
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Old Apr 12, 2011 | 05:18 AM
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It is the 1 MB ECU you have on the picture. Do you have the wiring from the pedal to the TAC and from the TAC to the TB?

Take pictures of all your wiring and post them.
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Old Apr 12, 2011 | 09:48 AM
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pcm is from a 2001-2000 ws6, trying to find out now for sure. engine came with a cable throttle body

pedal and tac were supposed to be from a truck... same truck... but i will pm the guy

i used a painless harness since i got it at a good deal so it came with the pedal and tac wiring. everything just plugged in.

the pedal i have i shortened and moved the mounting tabs, so incase it looks different. the number om top of it read-- 9700136958 and a barcode

can i just get a vette tac?
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Old Apr 12, 2011 | 09:54 AM
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starting with the pcm

red blue



tac plug from pedal






other tac plug






pedal assembly, i painted it, shortened the arm, shortened the pedal and relocated mouting tabs. so incase it doesnt look the norm.





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Old Apr 12, 2011 | 11:07 AM
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the pcm will get flashed when i find out what i need to do. im willing to run vette flash, ssr flash anything really
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Old Apr 12, 2011 | 08:20 PM
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so can i just get a ls7 throttle body? and get it flashed? im not a idiot, but this dbw stuff is killing me. the internet contradicts itself so much. hopefulyl someone here knows

Last edited by rexrunner; Apr 13, 2011 at 09:27 AM.
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Old Apr 13, 2011 | 01:26 PM
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ttt i know someone here knows for sure
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Old Apr 14, 2011 | 12:02 AM
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whoever gets me running gets a free stock ls1 throttle body!!!!!!
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Old Apr 15, 2011 | 08:59 PM
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You are definitely working with
- 2003-newer truck TAC
- LS1/LS6 Corvette throttle body
- Corvette pedal

The connector for the pedal is wrong for the Corvette pedal, so I originally suggested you may have a truck APP sensor installed on the Corvette pedal. But after seeing the picture of the pedal connector...



...someone slotted the truck pedal connector to be used with the Corvette pedal. In other words, you probably have an original Corvette pedal (not modified with truck APP sensor). So if you get a Corvette TAC, you will need to be sure the TAC to pedal harness is wired properly.
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