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P0401 Diagnostic Trouble Code Discussion for July 2008

Insufficient EGR Flow Detected

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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1999 Honda Accord EX 2.3L MIL Lamp on VIN: 1HGCG3253X
P0401: EGR System Insufficient Flow Detected. ... light on and only the p0401 was set, removed the egr valve and sprayed the port with carb. cleaner; turned the car on and sprayed some more to make sure the port is open and clean, then installed the new egr valve. i test drove the car and completed the dr...
July 17, 2008
1999 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG28K8X
P0401: EGR System Insufficient Flow Detected. hi tech, 99 camry setting code p0401 within 2 days after clearing. the egr is opening above idle and when i put vacuum on the egr the engine died at idle,which i believe a will functioning egr system.it look very basic system,but i think i'm lost on this one. ...
July 18, 2008
2002 Mazda Protege DX 2.0L MIL Lamp on VIN: JM18J225X2
P0401: EGR System Insufficient Flow Detected. ... code p0401 I take off the valve look at the passage it seem clean I run a wire through both intake and exhaust to make sure put it together and run monitor , it pass .mode 6 it also within limit, few day later customer come back with the same code I check ...
July 21, 2008