Well as some of you may know I have installed the Stage 1 Kit from GM. I just recently purchased the upgrade kit, that will up me to stage 2. With stage 1 I recieved a PCM reflash. I am currious to know if anyone can validate/prove whether I need another reflash when I get stage 2 installed?

Just interested in finding out what it would cost to get stage 2 installed. Praying I dont have to pay for another hour of ECU reflashing....

 

i dont think you need another reflash but i could be wrong.

 

Well in the instrcution manual there are 4 different part numbers for flashes. There is one for the 05 SS/SC for Stage 1 and one for the 06 SS/SC for the Stage 1. Then there is also another one for the 05 SS/SC for Stage 2 and yet another one for the 06 SS/SC Stage 2. This is why I bought the Stage 2 right off the bat, just in case something like this happened. I believe that would mean that the flashes are all slightly different.

 

READ

https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/i-dont-know-if-reflashes-same-18042/

 

Yes they are two different reflashes. The air/fuel ratio has to be changed when the pulley is added for stage 2. The proof is you would run way too lean with a stage 1 reflash and a pulley. The pulley is forcing more air than just a stage 1 so if your computer dosen't know there is more air your car will run super lean. They are two different reflashes!

 

WRONG WRONG WRONG WRONG. You guys are so wrong it isn't funny they are the same reflash I have the stage 1 w/2.8 and check your instructions for installing the kit the code is the same idiots. check my dyno sheet oh and by the way i am running very richw/the 2.8.

 

there the SAME!!!

 

hope this clears everything up... found it from max_boost post... those are the instruction from the kit..

 

The real answer would be for someone to get the stage 1 - 2 upgrade and see if the install instructions call for a reflash there you have it.

 

which is exactly what xenozx did so THEN we will know for sure.

 

Yea, I will pick it up early and check the instructions. And then I will let you know what the dealer says/does.

thanks for the info so far.

 

Keeps us in the know. If that is the case, then I might buy Stage 2 and then put a stock sized pulley back on until gas prices go back down.

 

u wont see that much decrase in gas.

 

I almost never drive highway, all city driving. That's why i'm worried about it.

 

Just because GM's part number (code) is the same for the flashes doesn't mean ****, we all know you can't just order the reflash by part number. The exact reflash you get is determined by the number that is printed on the instructions (that becaomes tied to your car) for the kit that you bought, this way GM can keep track of and control everything. I am not saying this does mean the flashes are different, but it leaves room for the possibility that they are.

Exactly.

 

Here is my opinion.
I believe Stage 1 and Stage 2 carry the same reflash. The only reason I can think of as to why the stage 1 to 2 upgrade kit might carry a reflash, is so that the VIN now carries a stage 2 attached to it's history (for service/warranty) records.
But then again, the instructions for the stage 2 kit state that you do not need the reflash if you already have stage 1 installed. When I orderd my stage 1 kit from GM they did require the VIN.
Im sure xenozx will have this all cleared up once he installs that kit.

 

How about this...why do you guys even care if it's a new reflash or not? If you get stage 1, then that's what you chose, if you want a little more gain, then you buy stage 2...1 or 2 reflashes, it doesn't make a difference...you either pony up now and get stage 2 or work your way up from 1 to 2. It's not effecting the price or anything...just curious.

 

Its for people who want to use a smaller than a 3" pulley. If the reflashes are the same and you want to use a 2.8, it doesn't make any sense to spend the money on stage2 just for a smaller belt that you will be able to get soon enough alone. If the reflashes are different then there is a reason for people to buy it to get the most out of that smaller pulley if they choose to use one.

 

So if you get a stage 2 reflash and use a 2.8" pulley do u think it will throw a code or if there will be a problem?

 

They are the SAME DAMN FLASH. Stage1, Stage2, doesnt matter, they both understand different pulley sizes.

If you want to get Stage1 and install some tiny pulley on your own, be my guest. The computer will understand it fine. You're just sacrificing warranty is all.