P0172 on Honda vehicles
58 owner complaints filed with NHTSA about Honda vehicles mention P0172 (System Too Rich Bank 1) - across 5 models. Below is where it shows up, by model and year.
Can you drive with it? Driveable, but a rich engine washes oil off cylinder walls and clogs the converter - do not ignore for months.
Symptoms, likely causes in order and realistic repair costs are on the main P0172 page - they do not differ much by brand. This page shows what is specific to Honda: which models and years actually report it.
Honda models reporting P0172
The number next to each year is how many NHTSA complaints for that car mention P0172. Owners rarely quote trouble codes when complaining, so real occurrence is many times higher - use these numbers to compare years, not as totals.
What Honda owners report
“vehicle may experience driveability issues, which may result in DTCs P0300 (random misfire detected), P0301 (No. 1 cylinder misfire detected), P0302 (No. 2 cylinder misfire detected), P0303 (No. 3 cylinder misfire detected), P0304 (No. 4 cylinder misfire detected), or P0172 (fuel system too rich) or a whirling noise coming from the engine compartment. POSSIBLE CAUSE Based on certain driving patterns and environmental factors, the DTC's stated above may be set or a whirling noise may occur. Apparently only certain vin numbers were affected, mine is not in the list but im still having the exact same issues.”2017 Honda CR-V · Aug 2026
“Have replaced the fuel injectors twice after completing the recalled fuel pump and now getting P0172 code with another bad injector!!! This is a piece of shit and I'm going to trade it in on a Toyota.”2018 Honda CR-V · Jul 2026
“I am reporting a failed remedy for Recall 24-009 (23V-858). Following the fuel pump recall, my 2018 Accord stalled in traffic on March 21. On March 24 upon starting my vehicle all warning lights were illuminated on the dashboard, Millennium Honda admitted the O-ring was misinstalled. This error triggered codes P0172/P0176 less than twenty-four hours later. The dealer is forcing me to pay $425 for damage caused by their botched recall repair.”2018 Honda Accord · Mar 2026
“All the warning lights randomly turned on while driving. I took it an independent mechanic and a Honda certified dealership, and both produced the same diagnosis, a replacement of fuel injectors. P0172 and P0301, P0302 The symptoms, noises, lights are all consistent with TSB19-037, which applies to 2017 and 2018 Honda CRVs. From online forums that have experience the issues around 60-80K miles, my CRV having 72K miles is consistent with the failed fuel injectors.”2019 Honda CR-V · Jan 2026
Counts are NHTSA owner complaints whose text mentions P0172 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.