P0139 Error
Posted: Mon Nov 18, 2024 7:19 am
Hello, i have a question about P0139 Error.
I'm running a 2019 Si and just installed the prl cobra intake, front and downpipe combo (catted), and Map performance exhaust. I've mapped the starter/19.5 psi tune on Ktuner and flashed it. I'm good for about 30 miles or so then the p0139 error comes up. I've disabled p0420 - the catalyst efficiency option and I've tried to disable to p0138/9 - o2 sensor. When I disabled the o2 sensor i drove for about 40 miles and had about 6 lights come on my dash. The Ktuner through out the p0172 error. I then flashed back and kept p0420 off. Any help would be greatly appreciated. I've also disabled Rev Hang.
Thanks a lot!
I'm running a 2019 Si and just installed the prl cobra intake, front and downpipe combo (catted), and Map performance exhaust. I've mapped the starter/19.5 psi tune on Ktuner and flashed it. I'm good for about 30 miles or so then the p0139 error comes up. I've disabled p0420 - the catalyst efficiency option and I've tried to disable to p0138/9 - o2 sensor. When I disabled the o2 sensor i drove for about 40 miles and had about 6 lights come on my dash. The Ktuner through out the p0172 error. I then flashed back and kept p0420 off. Any help would be greatly appreciated. I've also disabled Rev Hang.
Thanks a lot!