Just purchased the MPVI2 for my 05 Chevy Silverado 1500 w/a 4.8L engine. Before doing enough research I uploaded the 1 Bar OS patch before completely understanding what it does. I looked through the forum before posting like suggested and thought maybe a post is necessary for information on this process for others to find. Since the 1 Bar Speed Density OS patch can "Brick" my PCM I would like to understand some things before I attempt to undo the patch if that is what I need to do at all. I've created a list of questions below
1) Will I be able to pass a emissions test with the patch applied? From what I read this patch will turn of the MAF and put the PCM in "Speed Density Mode" only.
2) If I applied the 1 Bar SD patch can it be undone by applying the stock tune of the vehicle without "bricking" my PCM?
3) Is there a procedure somewhere on how to undo the 1 Bar SD OS patch like the one that displays when attempting to apply the patch?
4) If I apply the 1 Bar SD patch will it create a P0101 DTC code? Since I applied it my check engine light has come on with a P0101 (Mass Airflow (MAF) Circuit Operating Range or Performance Problem) and I'm wondering if that was the cause.
If I can turn my MAF back on with the patch great no problems at all, no potential brickable flashing necessary and that is the route I would prefer to take. But if this has changed my vehicle where I can fail emissions I would greatly appreciate a safe procedure on how to undo it. Thank you for your time