EV Diagnostics
Source-backed diagnostic reference

P1144 EV diagnostic code

HO2S Bank 1 Sensor 3 Rich Or High Voltage

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • BUICK: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • CADILLAC: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • CHEVY: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • CHRYSLER: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • GM: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • GMC: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • JAGUAR: Air Assisted Injector Control Valve Circuit Source
  • MAZDA: HO2S Bank 1 Sensor 3 Signal Above 0.45v AF Ratio Too Rich Source
  • OLDSMOBILE: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • OTHER: Air Assist Control Valve Circuit Malfunction Source
  • SATURN: HO2S Bank 1 Sensor 3 Rich Or High Voltage Source
  • SUBARU: Pressure Sensor Circuit High Input Source
  • VOLKSWAGEN: Mass Or Volume Air Flow Circuit Open/Short To Ground Source

Search and canonical URL

Capitalization, underscores, hyphens, colons and spaces are normalized to this canonical code identity so alternate scan-tool formats do not create duplicate pages.