Anyone ever seen this error code?

I got this error code after installing long tube headers and getting a tune. I’m pretty sure it’s because of the O2 sensor. After i unplugged it the engine light turned off.

Any tips on what to watch out for? Should my tuner be able to fix this?

Hopefully the engine light stays off.

Thanks!

I got this error code after installing long tube headers and getting a tune. I’m pretty sure it’s because of the O2 sensor. After i unplugged it the engine light turned off.

Any tips on what to watch out for? Should my tuner be able to fix this?

Hopefully the engine light stays off.

Thanks!