Possible causes
– DPFE Sensor harness is open or shorted
– DPFE Sensor circuit poor electrical connection
– Faulty DPFE Sensor
– DPFE Sensor circuit poor electrical connection
– Faulty DPFE Sensor
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
MAZDA Technical Service Bulletins for P1400 code
2001 MAZDA TRIBUTE ENGINE AND ENGINE COOLING:ENGINE
2002 MAZDA TRIBUTE ENGINE AND ENGINE COOLING:ENGINE
2001 MAZDA B4000 ENGINE AND ENGINE COOLING:ENGINE
2002 MAZDA B4000 ENGINE AND ENGINE COOLING:ENGINE
2001 MAZDA TRIBUTE ELECTRICAL SYSTEM
2002 MAZDA TRIBUTE ELECTRICAL SYSTEM
2001 MAZDA B4000 ELECTRICAL SYSTEM
2002 MAZDA B4000 ELECTRICAL SYSTEM
2001 MAZDA TRIBUTE ENGINE AND ENGINE COOLING:ENGINE
2002 MAZDA TRIBUTE ENGINE AND ENGINE COOLING:ENGINE