This truck was running a little off and the check engine light came on. The upstream O2 sensor on the passenger side decided to break and it triggered a P0051 DTC. Join me while we remove the old sensor. Make sure to have a bottle of MAP gas before attempting this repair - old sensors can get crusty and stuck! Also take care not to burn yourself.
![](https://s2.save4k.ru/pic/Kg1zCQ1boLA/maxresdefault.jpg)