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P0400 Diagnostic Trouble Code Discussion for July 2009

Exhaust Gas Recirculation System Flow Malfunction

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Trouble Ticket Help Requests for DTC P0400
Help Request Posted
2000 Mercedes-Benz E320 4Matic 3.2L MIL Lamp on VIN: WDBJH82J0Y
P0400: . customer come in with check light on P0400. The customer would come back week or later after we replaced parts with same code. We replaced egr valve,egr pipe,solenoid,evap canister and purge valve. Any ideas on a fix???
July 07, 2009
2001 Nissan Sentra GXE 1.8L Hesitation, MIL Lamp on VIN: 3N1CB51D81
P0400: EGR System Recirculation Flow. ... oi as this is a vvt engine. No help. Next pulled codes and found the codes listed. Cleared codes and the only one to come back is P0403 EGR volumn control valve. Did test according to [...] and everythimg pointeds to bea...
July 13, 2009