P1129

Set by the manufacturer, so it means different things on different makes. 19 makes in the table below.

More codes than this one? Paste your whole scan

What P1129 means, by make 19 makes

Acura MAP Higher Than Expected
Audi Long Term Fuel Trim mult.,Bank2 System too Rich
Chrysler Closed Loop Fueling Not Achieved - Bank 2
Citroen Downstream Heated O2 Sensors Swapped
Dodge Closed Loop Fueling Not Achieved - Bank 2
Ford Heated Oxygen Sensor Signals reversed
Honda Manifold Absolute Pressure (MAP) Sensor Circuit Higher Than Expected
Jaguar Downstream oxygen sensors swapped from bank to bank
Jeep Closed Loop Fueling Not Achieved - Bank 2
Lexus Electronic Throttle Control System
Lincoln Downstream Heated Oxygen Sensor Signals Reversed
Mercedes-Benz Downstream H02S Sensors Swapped
Mercury Downstream Heated Oxygen Sensor Signals Reversed
Peugeot Downstream Heated O2 Sensors Swapped
Porsche Oxygen Sensing
Saab Multiplicative Adaptation, Bank 2 Min. Value
Toyota Electric Throttle Control System Malfunction
Volkswagen Long Term Fuel Trim mult.,Bank2 System too Rich
Volvo Long Term Fuel Trim mult.,Bank2 System too Rich

Each line is that manufacturer's own meaning for P1129. They are genuinely different faults, not rewordings of one, so a meaning listed against one make says nothing about the others. If your make is not listed, we do not hold it - your manufacturer's service information is the authority.

Code structure P1129

Powertrain

engine, transmission and emissions

Manufacturer-specific

Defined by the vehicle manufacturer, so the meaning varies between makes.

Fault index

identifies the specific fault

Powertrain Manufacturer-specific

Nearby codes in the P1 range

Manufacturer code meanings from kierandrewett/obd (b56a07a), used under the MIT licence. Copyright (c) Kieran Drewett. SpareRadar is not affiliated with the dataset's authors.