P0400 Diagnostic Trouble Code Discussion for April 2010
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 | |
| 2002 Mazda Millenia 2.5L MIL Lamp on VIN: JM1TA22132 P0400: EGR System Flow Malfunction. I tested per Alldata and found nothing wrong. While the engine was running I applied vacuum to the EGR valve and the motor ran rough. Thus the passages and the EGR valve are OK. I tested the boostsensor, etc and found no problems. I put my vac gauge in place o... |
April 27, 2010 |
