What does code P1150 mean on Ford vehicles?
The upstream oxygen sensor on bank 2 does not switch properly and reaches adaptive fuel limits.
OBD-II Code Ford
P1150 — Ford — Upstream O2 Sensor No Switching Bank 2
The upstream oxygen sensor on bank 2 does not switch properly and reaches adaptive fuel limits.
Common symptoms
- Reduced efficiency
- increased fuel consumption
Possible causes
- Faulty upstream O2 sensor
- vacuum leak
Initial recommendation
Perform full intake system and upstream O2 sensor diagnosis.
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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