P1121 MAZDA Throttle Position Sensor Inconsistent with Mass Air Flow Sensor

Possible causes

– Faulty Throttle Position Sensor
– Throttle Position Sensor harness is open or shorted
– Throttle Position Sensor circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1121 MAZDA OBD Code Description

Sensor signal output not consistent with engine load measurement