I know this is an old thread, but on the off chance anyone still looks at it, I have a slight dilemma.
I just bought an 06 STi that (I'm told) had a Cobb AP Stage II tune. The AP did not come with the car. I would like to do an Open Source tune in order to facilitate better boost response.
I ordered my tactrix cable today. To my knowledge I'm going to get some type of error saying the ECU is locked when I try to reflash it.
Is there anyway to unlock my ECU without an AccessPort?