Here's is what i'm working with. Customers 2006 Silverado 5.3 Just installed turbo system. 8psi for now. I use EFI Live for tuning and there 2 and 3 bar Custom Operating Systems for boost. The problem is that EFI live stopped there COS's in 05! Now i have flashed in a 05 OS but the DBW and TAC modules are different from 03-05 and 06-08 I can not use an older OS's, truck will start and idle off it but soon as your give it gas it throws a TAC code and falls into reduce power mode.

My question is, has anyone swaped 03-05 DBW and TAC module to an 06-08 I don't have much research in it as of yet all i know is from this post over at EFI Live forum
http://forum.efilive.com/showthread....o...-questions

Love to figure this out, i am sure someone else has ran into it before with the boosted 06-08 if there using EFI Live.

 

Why not just do a good MAF tune. A 5.3 at 8psi should have no problem with it. 2+bar SD tune is not really needed untill you physicaly max out the MAF.

 

pm Chris

https://www.performancetrucks.net/fo...r.php?u=107891

he had to do that on his 07. i believe Justin did it for him.

 

at 7 psi on my 6.0 I had the maf maxed out and it was just a guessing game. Supposedly Justin said I am the first and only person he has done this for.


I went through this with justin, I swaped my tac and pedal to a 2004 matching (came out of the same truck). I am not 100% sure what justin did on his end but I am now running a OS out of a 2004 hd truck. Its a cos3 and I haven't had any problems other than the accelerator was very touchy at first and I have since had it retuned by a guy in Baton Rouge LA and its perfect! I would direct you to Justin@bbp but you will most likely have to purchase a tune or pay him to have him fix the tune for you because I am not familiar with this.

 

Pm custom2500 to build you one that works.

 

MAFF tune is not an option for us. Going up to 12-13 psi maybe 15. See how much a stock 5.3 will take.

lownslo: so all you did was swap pedal and tac module ( matching years of course ) install them and have justin setup the tune for you? No other wiring needed?

 

Yes it can be done,done it many times on my personal truck.

 

Care to share the dirty details with me? Does it just consist of swapping pedal and TAC from an 03-05 in and full flash the correct year OS for the pedals?

Any info would be greatly appreciated.

Thanks Brad

 

Use the TAC and Pedal from the same truck to put on yours.You will need to flash the proper year model and OS for it to work.
If you need help just send me a PM