P0400 Diagnostic Trouble Code Discussion for May 2009
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 | |
| 1996 Mercedes-Benz E320 3.2L MIL Lamp on VIN: WDBJF55F1T P0400: EGR Flow Malfunction. Vehicle keeps setting code P0400 (EGR flow malfunction)after 25 to 35 miles of driving after code is cleared. EGR valve is new and tubes to and from it are clear. Exhaust flows freely from exhaust manifold when tube to EGR valve is removed and engine is starte... |
May 06, 2009 |
