06CobaltSSS

Hey guys just want to know if its possible to swtich the stock pcm with another one thats tuned and then whenever it need to go to the dealer for some reason put the stocker back in and they wont be able to notice. I think thats right..let me kno. I want my warranty but i want more power

Joewit

You can swap pcm's but you would need to have some procedure done on the new pcm for it to work with your engine. When I had this done the only place I could find to do it was a dealer.

Joewit

I know the name of what you need done to the pcm its on the tip of my tongue just cant get it out

06CobaltSSS

the STG 3 pcm would work tho right. Could I just buy that and also have it tuned even more for what ever i have on my car.

Joewit

With a mail order PCM , the Crankshaft Position Variation Learn procedure (commonly referred to as CASE Learn) will also be required to prevent DTC P0315 (Crankshaft Position Variation Not Learned) from triggering your Service Engine Soon light. Anyone with a Tech II (such as a GM dealership) can perform this special function for you in a couple minutes. Some discretion is necessary when asking your dealership to NOT re-flash the PCM. If they re-flash the PCM, all your special tuning will be gone and un-retrievable. Many dealers will perform the Crankshaft Position Variation Learn procedure for free, while others may charge a modest fee
From intense's website. cost me $87 to get done

Omega_5

I've been thinking about doing this too...
the biggest problem is that you have to put your engine back to stock (or what ever the other PCM is programmed for) everytime you take it into the stealership...
For me... i'm not to worried about it...

As far as the CASE learn procedure... i'm kinna lucky... i have access to a techII at the lab at work..... So this isn't holding me back at all....
Maybe you have a friend who can do this for you (no questions asked kinna thing... )

06CobaltSSS

Im not planning on doing anything major with it i just thought id get another one so i can use HP tuners and limit my boost and then maybe add some stuff and get a dyno tune somewhere . Im still interested in knowing if the STG Pcm can be bought and then tuned some more and still ahve the NOS and rev limit changer thing on it.