P1408 Mazda EGR Flow Out Of Self Test Range
Possible causes
For vacuum activated systems, see the possible causes for DTC P0401 Mazda. For electric motor systems, see the possible causes for DTC P0400 Mazda.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1408 Mazda Description
This test is performed during the KOER on-demand self-test only. The EGR system is commanded on at a fixed engine speed. The test fails and the DTC is output when the measured EGR flow falls above or below the required calibration .
Mazda Vehicle:Mazda B-Series, Mazda CX-7,Mazda CX-9,Mazda MAZDA2,Mazda MAZDA3,Mazda MAZDA5,Mazda MAZDA6,Mazda Miata MX-5,Mazda RX-8,Mazda Tribute,Mazda RX-8,Mazda MX-5,Mazda CX-9,Mazda Atenza,Mazda Axela,Mazda Tribute,