New SCT update requires loading stock file in car

I understand your concern the last thing you want to do is brick your ecu. Glad you got it going again!

Working on updating my tune today for a check engine light issue. I went through the process of updating the software as well as the tune, then after I download everything I get the popup for returning to stock. I've saved my stock file to the PC.

For anyone that's returned to stock and went through the update and saved the stock file to PC, were there any issues? It seems like after the device updates I could just load the stock file like any other tune if I need to.

With one tuner, and SCT, every update requires that the car is flashed back to stock. This can mean flashing an update takes >30 minutes.

With another tune and SCT, I can flash tunes over the previous one, not requiring me to return to stock prior to applying the new tune revision.

I know nothing about SCT to know why this is, but I have never had problems returning the car to stock.

I went ahead and flashed it to stock since I had time on my hands. Still not getting rid of the p2251 code after the updated tune. Either a bad O2 sensor or bad extension/wire. Sucks.

Did you do a KAM reset?

Not even sure what that is? I did a quick read and it sounds like it's the same as doing a ECM reset with a battery disconnect. I did a code clear on the SCTx4, but nope... no KAM reset.

Yeah, it's the equivalent of a ECM reset by disconnecting the battery. I had an O2 issue (stuck rich) and a KAM reset issue fixed it.

I'll look into that. Thank you [MENTION=14965]esacteksab[/MENTION]