Possible causes

– Faulty Mass Air Flow Sensor
– Air leak before or after sensor
– Mass Air Flow Sensor harness is open or shorted
– Mass Air Flow Sensor circuit poor electrical connection

When is the code detected?

The Engine Control Module (ECM) detected a Mass Air Flow (MAF) sensor signal above or below calibrated limit

Symptoms

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

P1102 MAZDA Description

Mass Air Flow (MAF) Sensor