Learn about P0172 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal.

May 10, 2010 · P0172 is :system too rich (bank 1). This is usually caused by a restricted/clogged air intake filter. Manifold absolute pressure sensor, throttle position sensor, engine coolant temperature …

Apr 7, 2026 · Lexus IS250 Check Engine Light With Code P0172 and/or P0175 - 2 reports. Learn about this problem, why it occurs, and how to fix it.

Jan 26, 2013 · Got a code on 2004 trailblazer (P0172). what is the main problem for this code?

Jul 23, 2024 · Recently bought a 2014 bmw x3 28i that is throwing the p0171 and p0172 in bank 1. Has a lack of power and noticeable exhaust residue. Have checked ...

Jul 6, 2025 · Getting a P0172 System Too Rich Bank 1 on a 2019 Genesis G70- under 60k miles. What is your question? Getting a P0172 code. (System too rich Bank 1) Is this a common problem for …

May 27, 2014 · Learn about P0172 & P0175 codes in your 2003 Toyota Highlander after changing the Mass Air Flow sensor. Discover causes, solutions, and maintenance tips.

May 19, 2022 · 2015 Chevy Suburban trouble codes p0172 & p0175 together 2015 Chevrolet Suburban Asked by Visitor in Decatur, IL on May 19, 2022

Jul 21, 2012 · Mil code P0172 and P0170, running too rich 2000 Honda Civic Asked by Hr22lm in Clovis, CA on July 21, 2012

Mar 23, 2010 · Code P0172 shows on the code reader (rich fuel in bank 1) replaced vacuum hoses/fuel filter/sparke plugs. still runs rough/same code of P0172. Any ...