Cel p1276

[Most_Wanted]

Installed new precat O2 sensors and after 150 miles cel came on.

P1276 I did a bit of research and its a precat o2 aging/delay issue. Has anyone dealt with this cel given similar condition?

I used bosche 15182

986 606 127 01 (Porsche)

I also have headers if that matters and i'm using defoulers for the post o2's. so far no cel for those.

[Anker]

If you bought them on eBay or Amazon the sensors may be fake Bosch and junk.