P1129 — Ford
P1129 — Ford: Downstream Heated Oxygen Sensor Signals Reversed
Code breakdown
P — System
Powertrain (engine, transmission, fuel & emissions)
1 — Type
Manufacturer-specific
1 — Subsystem
Fuel and air metering
Manufacturer-specific meanings (Ford)
- Sonde lambda a valle scambiate
- MAP Higher Than Expected
- Downstream Heated Oxygen Sensor Signals Reversed
- Electronic Throttle Control System
- Downstream H02S Sensors Swapped
- Electric Throttle Control System
- Long Term Fuel Trim Bank 2 System Too Rich
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