OBD-II Code Lexus

P1130 — Lexus — Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)

The air/fuel ratio sensor signal on bank 1 sensor 1 is outside the expected operating range before the catalytic converter.

Brand Lexus
System Emissions
Severity Medium
Safe to drive? Yes, with caution
Advanced scanner Yes

What does code P1130 mean on Lexus vehicles?

The air/fuel ratio sensor signal on bank 1 sensor 1 is outside the expected operating range before the catalytic converter.

Common symptoms

  • Increased fuel consumption
  • check engine light

Possible causes

  • Faulty A/F sensor
  • exhaust leaks
  • incorrect air-fuel mixture

Initial recommendation

Inspect air/fuel ratio sensor operation and check exhaust system.

Safety notice

This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.

Analyze this code with MecaOBD

Use the app to combine Lexus code P1130 with your vehicle's actual symptoms for more complete diagnostic guidance.

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