Quote: Originally Posted by
SebringLX 
No disconnecting the battery will not return you to stock, there is no need to disconnect the battery, every time you flash, the PCM memory is erased. To return to stock, you need to use the "Return to stock" option on the SCT XCal2.
Trying to bring up my dyno pulls from Saturday to double check, but this actually sounds similar to what I was seeing on the dyno tuning my own car.
Static fuel pressure? Or rising rate?
*EDIT*
Ok just went back and checked my dyno graphs from Saturday.. see my other post in this section titled "Can't get fuel above 5K", I was just going off memory on that post, now I have the graphs to look at.
I have a flat AFR line until a certain RPM on every pull, then it jumps to lean. Littlerally looks like this: ______/
I'd post the graphs but I can't get to any pic hosting sites from work.
I was focusing on trying to get rid of it going lean up top first, and never got to the point where I would try to lean it up in the low to mid range.
This is what I see. With boost leveling out at 10psi (get full boost in the 3400-3600RPM range), Flat 10:1 AFR until 5350RPM then it starts to go lean, at 5550RPM it's at 12:1, 5700RPM it crosses 13:1.
Next pull, holding 12psi, 10:1 until 5275RPM, 12:1 right at 5500, 13:1 at 5650.
Go to 15psi, flat line 10:1 until 4850, 12:1 at 5050, 13:1 at 5200.
One of the first pulls before I started messing with things, holding 19psi AFR was in the 11.3-11.7:1 range until 4850RPM then it shot up above 12:1 and we let off ending the pull. At that point I started adding fuel in up top at that range but nothing happend. After that I started messing with the boost. After each pull I'd try to add fuel where it went lean, and nothing happend.
its not even leaning out at higher rpm's its still in the high 10's. its almost like someone is taking my foot right off the gas
