Apr 25, 2015 · 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 …

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 …

Feb 14, 2010 · GS - 2nd Gen (1998-2005) - P0171 finally fixed?!?! - I've been trying to locate and fix the problem that was causing me to get recurring P0171 code on my 99 GS400 (95K miles). I did all the …

Jul 16, 2022 · IS - 2nd Gen (2006-2013) - P0171 P0174 Solved - I recently got this 2008 IS250 AWD. I knew it would need some work, and one of the issues was that the CEL, VSC, and TRAC lights were …

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.

Mar 15, 2014 · ES - 1st to 4th Gen (1990-2006) - 2001 Misfiring P0300, P0171, P0174 - Well here's a tricky one... I recently fixed the knock sensor errors by replacing the KS harness and sensors, so …

LS - 4th Gen (2007-2017) - 2008 ls460 p0171 p2195 - I would greatly appreciate help with my check engine light issue on my 2008 LS 460L with 130K miles. This type of issue is new to me though I'm …

Dec 7, 2024 · ES - 1st to 4th Gen (1990-2006) - P0171 P0174 2003 Es300 - I just got P0171 P0174 again (2003 ES300 108k), I got the code a few months ago - replaced the mass airflow sensor.

RX - 1st Gen (1999-2003) - Fuel trims--Diagnosing P0171, P0174, P0172, P0175 - Hey guys, Just want to share some knowledge if you are having problems diagnosing a Lean/Rich code. Fuel trim …

Oct 27, 2010 · ES300 stutters. CEL code P0171. Need advice Help. I bought a 99 ES300 last Jan. Now the check engine light is on. Also the vsc and vsc off are on. AutoZone found the following codes: …