EV Diagnostics
Source-backed diagnostic reference

P1129 EV diagnostic code

MAP Higher Than Expected

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

  • ACURA: MAP Higher Than Expected Source
  • FORD: Downstream Heated Oxygen Sensor Signals Reversed Source
  • HONDA: MAP Higher Than Expected Source
  • INFINITI: MAP Higher Than Expected Source
  • LEXUS: Electronic Throttle Control System Source
  • LINCOLN: Downstream Heated Oxygen Sensor Signals Reversed Source
  • MAZDA: Downstream H02S Sensors Swapped Source
  • MERCURY: Downstream Heated Oxygen Sensor Signals Reversed Source
  • OTHER: Downstream Heated O2 Sensors Swapped Source
  • TOYOTA: Electric Throttle Control System Source
  • VOLKSWAGEN: Long Term Fuel Trim Bank 2 System Too Rich 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.