What does code P1131 mean on Jaguar vehicles?
The ECU detects a slow response from the upstream oxygen sensor on bank 1.
OBD-II Code Jaguar
P1131 — Jaguar — Heated Oxygen Sensor Upstream Bank 1 Slow Response
The ECU detects a slow response from the upstream oxygen sensor on bank 1.
Common symptoms
- Check engine light on
Possible causes
- Aged or contaminated oxygen sensor
Initial recommendation
Replace the upstream oxygen sensor on bank 1 to restore response time.
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.
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