P2074: owner reports and bulletins

Powertrain (generic, all makes). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P2074 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

3 complaints filed with NHTSA mention P2074, 2 of them since 2015, across 3 different models. The component owners most often filed it under: engine.

Manufacturer service bulletins that name P2074

14 technical service bulletins and manufacturer communications filed with NHTSA mention P2074, from 2 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • HYUNDAI SANTA FE (2021, 2022, 2020), bulletin 10206359: Certain 2020-22MY Sonata (DN8a), 2021-22MY Santa Fe (TMa), and 2022MY Tucson (NX4/NX4a) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): P2074: Mass Airflow Sensor Plausibility P2074F0: Manifold Absolute…
  • HYUNDAI SONATA (2020, 2021, 2022), bulletin 10208865: Certain 2020-22MY Sonata (DN8a) and 2021-22MY Santa Fe (TMa) vehicles equipped with 2.5L engine may exhibit a MIL with DTC(s): P2074: Mass Airflow Sensor Plausibility P2074F0: Manifold Absolute Pressure/Mass Air Flow - T…
  • FORD F-250 SD (2011, 2012), bulletin 10209377: Some 2011-2012 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P2073 and/or P2074 stored in the powertrain control module …
  • FORD F-550 SD (2011, 2012), bulletin 10248068: Certain 2011-2012 Model Year F-Series Super Duty Vehicles Equipped with 6.7L Diesel Engine State Inspection and Maintenance Testing Failure Due to DTCs P2073 and/or P2074
  • FORD F-350 SD (2011, 2012), bulletin 10249483: Certain 2011-2012 Model Year F-Series Super Duty Vehicles Equipped with a 6.7L Diesel Engine State Inspection and Maintenance Test Failure Due to DTCs P2073 and/or P2074 Adding owner letter and corrected dealer bulletin.…
  • FORD F-750 SD (2013, 2014, 2015, 2016), bulletin 10148731: Some 2013-2019 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated MIL with only DTC P2074 stored in the powertrain control module (PCM). This may be due to a dirty air filter, replace the filter…

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.