P1131 — Mercury
P1131 — Mercury: Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
1 — Type
Manufacturer-specific
1 — Subsystem
Fuel and air metering
Manufacturer-specific meanings (Mercury)
- Commutazione sonda lambda destra a monte errata sensore indica miscela magra
- HO2S Circuit Low Variance Bank 1 Sensor 2
- Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1
- HO2S Bank 1 Sensor 1 Signal Below 0.45v AF Ratio Too Lean
- Front Oxygen Sensor Circuit Malfunction Short Circuit
- Bank 2 Sensor 1 Resistance Too High
Related codes
- P1100 — Manufacturer-specific fault code
- P1100-fiat — Intermittenza circuito sensore misuratore massa aria
- P1100-ford — Mass Air Flow Sensor Intermittent
- P1100-lexus — BARO Sensor Circuit Malfunction
- P1100-lincoln — Mass Air Flow Sensor Intermittent
- P1100-mazda — Mass Air Flow Sensor Circuit Intermittent