P1121 BMW Pedal Position 1 Range/Performance Problem

Possible causes – Faulty Pedal Position Sensor– Pedal Position Sensor harness is open or shorted– Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1122 BMW Pedal Position 1 Low Input

Possible causes – Faulty Pedal Position Sensor– Pedal Position Sensor harness is open or shorted– Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1123 BMW Pedal Position 1 High Input

Possible causes – Faulty Pedal Position Sensor– Pedal Position Sensor harness is open or shorted– Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0139 BMW O2 Sensor Circuit Slow Response Bank 1 Sensor 2

Possible causes – Faulty Rear Heated Oxygen Sensor Bank 1– Rear Heated Oxygen Sensor Bank 1 harness is open or shorted– Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks Tech description Replacing the Rear Heated Oxygen Sensor Bank…