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 …

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 …

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 …

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 …

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' …

3 days ago · RX Models -Unique topics related to the 2023 up RX model hybrid drivetrain and other features/options found only on the hybrid models. Please use the main forum for …

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 …

Jun 29, 2014 · MAF Testing - Pages from RX300 Repair Manual PDF A set of technical diagrams that illustrate the testing of a Mass Airflow (MAF) Sensor for an RX300 vehicle. The diagrams …

RX - 1st Gen (1999-2003) - P0330 Knock Sensor, 15 min. Hack Repair... - This is for the people that don't want to pay big money to replace a bad knock sensor. I got the dreaded P0330 code …

Dec 21, 2025 · IS F (2008-2014) - Lexus IS F forum discussion, how-to guides, and technical help.