![I have a 2007 Mazda 3 with a diagnostic code of p2251 and the car seems to hesitate, can anyone help? I have a 2007 Mazda 3 with a diagnostic code of p2251 and the car seems to hesitate, can anyone help?](https://ww2.justanswer.com/uploads/supermazdatech/2011-01-27_050615_2251.gif)
I have a 2007 Mazda 3 with a diagnostic code of p2251 and the car seems to hesitate, can anyone help?
![16. Датчик Кислорода ошибка P0134 и P2251. Сканер ELM 327 — Mazda 3 (1G) BK, 2 л, 2007 года | визит на сервис | DRIVE2 16. Датчик Кислорода ошибка P0134 и P2251. Сканер ELM 327 — Mazda 3 (1G) BK, 2 л, 2007 года | визит на сервис | DRIVE2](https://a.d-cd.net/kkAAAgDqmeA-960.jpg)
16. Датчик Кислорода ошибка P0134 и P2251. Сканер ELM 327 — Mazda 3 (1G) BK, 2 л, 2007 года | визит на сервис | DRIVE2
![P2251 Code: O2 Sensor Negative Current Control Circuit / Open Bank 1 Sensor 1 - In The Garage with CarParts.com P2251 Code: O2 Sensor Negative Current Control Circuit / Open Bank 1 Sensor 1 - In The Garage with CarParts.com](https://www.carparts.com/blog/wp-content/webp-express/webp-images/doc-root/wp-content/uploads/2022/08/drivewire-car-upstream-oxygen-sensor-1024x602.jpg.webp)
P2251 Code: O2 Sensor Negative Current Control Circuit / Open Bank 1 Sensor 1 - In The Garage with CarParts.com
![2006 MAZDA3 P0131 P0134 P2251 - UPSTREAM OXYGEN SENSOR REPLACEMENT (BANK 1 SENSOR 1) - EASY DIY! - YouTube 2006 MAZDA3 P0131 P0134 P2251 - UPSTREAM OXYGEN SENSOR REPLACEMENT (BANK 1 SENSOR 1) - EASY DIY! - YouTube](https://i.ytimg.com/vi/5sP5tcUa1eo/sddefault.jpg)