P1408 Honda EGR Flow Out Of Self Test Range
Possible causes
For vacuum activated systems, see the possible causes for DTC P0401 Honda. For electric motor systems, see the possible causes for DTC P0400 Honda.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1408 Honda 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 .
Honda Vehicle:Honda Accord,Honda Civic,Honda Crosstour,Honda CR-V,Honda CR-Z,Honda Element,Honda Fit,Honda Insight,Honda Odyssey,Honda Pilot,Honda Ridgeline,Honda Accord Crosstour,