FEOA Forums banner
1 - 3 of 3 Posts

6 Posts
Diagnostic Trouble Code (DTC) P0402 indicates that self-test has detected EGR flow.

Possible causes:

Non-seated EGR valve.
Damaged EGR valve.
Damaged EGR Valve Position sensor.
Plugged or pinched EGR valve vacuum hose.
Plugged or iced EGR Vacuum Regulator solenoid vent.
EVR circuit shorted to GND.
Damaged EGR Vacuum Regulator solenoid.
Damaged PCM.
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.