Jan 5, 2013 · RX - 2nd Gen (2004-2009) - FINALLY SOLVED! P0171 and P0174 Codes!!!! - P0171 and P0174 I know this is long, but if you've had these codes, please read the entire post as it will explain …

Oct 10, 2018 · P0171 Definition The P0171 code means that, on the first bank of the engine, the fuel system is running weak (or lean) or a vacuum leak exists near this side of the engine. A lean …

Nov 19, 2018 · Code P0171 applies to Bank 1 and P0174 applies to Bank 2. Code P0174 mainly applies to V6 or V8 engines because 4-cylinder engines generally have only one bank, though there are a …

Feb 12, 2018 · LS - 1st and 2nd Gen (1990-2000) - 98 Lexus LS 400 p0171 and cannot figure out fix - I have a 98 Lexus LS400 with the p0171 code. I have replaced the MAF sensor, all o2 sensors.

Jan 30, 2012 · A technical documentation that outlines diagnostic trouble codes (DTC) related to fuel system imbalances in vehicles, specifically for 'System too Lean' or 'System too Rich' conditions …

Jan 8, 2026 · ES - 1st to 4th Gen (1990-2006) - Forum discussion, how-to guides, and technical help for the Lexus ES300, ES330, and ES250.

Feb 18, 2022 · A service bulletin addressing issues related to air-fuel ratio imbalance and cylinder misfire in specific Lexus models.

Dec 30, 2016 · Engine DTC Chart PDF A chart that details diagnostic trouble codes (DTCs) for a 2002 Lexus LS430. The chart lists various codes associated with engine performance and potential …

Feb 20, 2024 · New Year, New Options The Lexus SUV/crossover lineup has undergone some serious changes over the past couple of years, with nearly every existing model receiving some sort of …

Read Lexus ES specs, maintenance schedules, and repair guides with photos and videos to help you maintain your Lexus.