2006 Hummer H3 Check engine light Code P0030/P0135

[@fcrojas5276]

Thanks for this useful information and instruction. More contents please.

[@tomfrantz]

Perfect job. Thank you

[@JuanHerrera-ve4lh]

Hi my friend!! what sensor is that one? l can't find it,because l qant to change mine too, thanks!!

[@davidbryant5875]

Thanks for the video! Mine is engine light is on saying o2