P0400 Diagnostic Trouble Code Discussion for December 2019
Exhaust Gas Recirculation System Flow Malfunction
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P0400
| Help Request | Posted | |
| 2003 Subaru Outback 2.5L MIL Lamp on VIN: 4S3BH67513 P0400: No EGR flow. ... 2.5 motor. Code P0400 keeps coming back. I cleaned the ports then I replaced the EGR valve and checked that no broken wires or unplugged connectors. There is a self test connector under the dash (green) that I plugged in and with KOEO EGR valve and ot... |
December 07, 2019 |
