Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

OBD2 CC306 GM847, GTP6 big cam guys with tunes inside

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Old Jul 25, 2004 | 11:05 PM
  #1  
30thA4Hugger's Avatar
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From: Fremont, Ca, USA
OBD2 CC306 GM847, GTP6 big cam guys with tunes inside

Hi guys,
I'm having a hard time finding a tune for my cam GTP6 that is for OBD2. Any tune at all for obd2 and a big cam would be great!

My car's a forged 355 with GTP stage3 LT4 heads and a GTP6 cam, right now it runs fine when first fired up (open loop) then almost chokes when transitioning to closed loop, and start running extremely rich (black smoke everywhere). I'd like to see a file so that I can copy a few tables from someone else's obd2 .lt1 into mine as a basis to start my own tuning.

Thanks!
Old Jul 26, 2004 | 02:25 AM
  #2  
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Re: OBD2 CC306 GM847, GTP6 big cam guys with tunes inside

I would say just take a look at someone's OBDI tune & do the same thing for timing/fueling etc...
Old Jul 26, 2004 | 02:29 AM
  #3  
30thA4Hugger's Avatar
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From: Fremont, Ca, USA
Re: OBD2 CC306 GM847, GTP6 big cam guys with tunes inside

I would... but there are slight inconsistancies, and manually editting all tables is not fun. I wish I could either transform obd1 to obd2, or find a way to make edit copy the tables from one of the files to the other.


My hope is to find someone that's got an obd2 file.
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