EV Diagnostics
Source-backed diagnostic reference

P1190 EV diagnostic code

Pre-Catalyst Fuel Trim System Bank 1

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

  • BMW: Pre-Catalyst Fuel Trim System Bank 1 Source
  • BUICK: Engine Vacuum Leak Source
  • CADILLAC: Engine Vacuum Leak Source
  • CHEVY: Engine Vacuum Leak Source
  • CHRYSLER: Engine Vacuum Leak Source
  • FORD: Calibration Resistor Out Of Range Source
  • GM: Engine Vacuum Leak Source
  • GMC: Engine Vacuum Leak Source
  • JAGUAR: O2 Sensor Heater Circuit Low Resistance Fault 2 Source
  • LINCOLN: Calibration Resistor Out Of Range Source
  • MAZDA: Calibration Resistor Out Of Range Source
  • MERCURY: Calibration Resistor Out Of Range Source
  • OLDSMOBILE: Engine Vacuum Leak Source
  • OTHER: Calibration Resistor Out Of Range Source
  • SATURN: Engine Vacuum Leak Source
  • VOLKSWAGEN: Linear Oxygen Sensor Reference Voltage Incorrect Signal Source

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