I want to know what steps to take first. Possibly change out the problematic O2 sensor first? If so, where is Bank two sensor 1? Should I change out all of them given the mileage is high at 155,000 miles?
Sunday, March 1st, 2026 AT 11:59 AM
SIXTY6GTO
- MEMBER
- 2007 LEXUS ES 350
- 3.5L
- 2WD
- AUTOMATIC
- 155,000 MILES
I have a Lexus 350 manufactured 01/2007 with the 3.5 Liter 2GR-FE V6. It has the following codes: P0174 (stored) "system Too lean " A/F Lean Bank 2. And.P2197 (pending) Oxygen (A/F) sensor signal stuck lean Bank two Sensor 1. I used my OBD2 scanner myself.
I want to know what steps to take first. Possibly change out the problematic O2 sensor first? If so, where is Bank two sensor 1? Should I change out all of them given the mileage is high at 155,000 miles?
I want to know what steps to take first. Possibly change out the problematic O2 sensor first? If so, where is Bank two sensor 1? Should I change out all of them given the mileage is high at 155,000 miles?
