P0172 — OBD-II trouble code

A generic powertrain OBD-II trouble code. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0172 across 23 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0172 23 patterns

2021 Honda Civic

electrical — Engine stalling with oil and battery warning lights

2021 Honda CR-V

powertrain — Fuel system injector failure

2019 Honda CR-V

engine — Oil dilution / fuel contamination of engine oil

2019 Honda CR-V

electrical — Fuel Injector Failure Cascading to Full System Shutdown

2019 Honda CR-V

powertrain — Fuel Pump Failure

2019 Kia Sportage

engine — Excessive Oil Consumption

2018 Honda CR-V

electrical — Dashboard warning lights and ADAS system failures (P0172 fuel system too rich)

2018 Honda CR-V

fuel system — Fuel Pump Failure (High-Pressure)

2018 Honda CR-V

powertrain — Engine oil dilution by gasoline

2018 Honda Fit

engine — Carbon buildup on intake valves and fuel injector failures

2017 Honda CR-V

engine — Engine misfire and loss of power / limp-mode activation

2017 Honda CR-V

powertrain — Fuel Injector / Fuel System Misfire and Limp Mode

2015 Honda Fit

engine — Fuel Injector Carbon Buildup and Misfires

2014 Hyundai Santa Fe

powertrain — Engine oil starvation and seizure

2013 Kia Optima

engine — Engine seizure / catastrophic failure

2013 Kia Soul

engine — Connecting rod/piston bearing seizure and engine block puncture

2013 Mazda CX-5

engine — Loss of Power / Limp Mode / Drivability Loss

2011 Toyota Corolla

cruise control — Abnormal deceleration / failure to slow when accelerator released

2010 Chevrolet Equinox

powertrain — Excessive Oil Consumption / Piston and Ring Failure

2010 Chevrolet Equinox

cruise control — Rough idle and stalling at low speed / stop

2008 Chevrolet Impala

powertrain — Reduced Engine Power / Throttle Control Failure

2006 Nissan Murano

engine — Stalling / Loss of Power While Driving

2005 Ford Ranger

engine — Engine stalling/shutdown—undiagnosed cause

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →