


▲ 2 r/AskAMechanic
Any way to tell which o2 sensor is causing a rich mix from these codes?
It gives me 2 different banks on these 3 codes. I was told by a mechanic that these are being caused by a bad oxygen sensor. Any way to figure out which sensor it is without going to a shop ?
2003 Lexus GS430 (4.3 v8)
u/johnnyutah1103 — 13 hours ago