OBD-II Code Mazda

P1130 — Mazda — HO2S Bank 1 Sensor 1 Not Switching (Fuel Control Limit Reached)

The oxygen sensor on bank 1 sensor 1 is not switching, causing the fuel control system to reach its limit.

Brand Mazda
System Emissions
Severity Medium
Safe to drive? Yes, with caution
Advanced scanner Not necessarily

What does code P1130 mean on Mazda vehicles?

The oxygen sensor on bank 1 sensor 1 is not switching, causing the fuel control system to reach its limit.

Common symptoms

  • High emissions
  • poor fuel control

Possible causes

  • Faulty oxygen sensor
  • mixture control issue

Initial recommendation

Replace oxygen sensor and verify fuel control operation.

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

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