Join Now
International Automotive Technicians Network

P0401 Diagnostic Trouble Code Discussion for December 2013

Insufficient EGR Flow Detected


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 P0401
Help Request Posted
1996 Ford Crown Victoria 4.6L MIL Lamp on VIN: 2FALP73W9T
P0401: . This vehicle has a curious problem. First thing I did for the insufficient flow code was check vacuum source was ok, next checked power to the egr solenoid, manually operated egr with only a stumble not stall result. Next disconnected the egr solenoid and fed ...
December 04, 2013
1996 Ford Crown Victoria 4.6L MIL Lamp on VIN: 2FALP73W9T
P0401: . This vehicle has a curious problem. First thing I did for the insufficient flow code was check vacuum source was ok, next checked power to the egr solenoid, manually operated egr with only a stumble not stall result. Next disconnected the egr solenoid and fed ...
December 05, 2013
1999 Isuzu Rodeo LS 3.2L Poor Idle Quality, Cuts out, Stall VIN: 4S2CK58W7X
P0401: Insufficient EGR System Flow Detected. ... Customer was complaining that the vehicle would cut out on him and that he had to keep his foot on the gas in order to keep it running. At other times the idle was unstable and the SES lamp was on constantly. The vehicle was test driven (low idle was dupli...
December 18, 2013
1996 Ford Crown Victoria 4.6L MIL Lamp on VIN: 2FALP73W9T
P0401: . This vehicle has a curious problem. First thing I did for the insufficient flow code was check vacuum source was ok, next checked power to the egr solenoid, manually operated egr with only a stumble not stall result. Next disconnected the egr solenoid and fed ...
December 04, 2013
1996 Ford Crown Victoria 4.6L MIL Lamp on VIN: 2FALP73W9T
P0401: . This vehicle has a curious problem. First thing I did for the insufficient flow code was check vacuum source was ok, next checked power to the egr solenoid, manually operated egr with only a stumble not stall result. Next disconnected the egr solenoid and fed ...
December 05, 2013
1999 Isuzu Rodeo LS 3.2L Poor Idle Quality, Cuts out, Stall VIN: 4S2CK58W7X
P0401: Insufficient EGR System Flow Detected. ... Customer was complaining that the vehicle would cut out on him and that he had to keep his foot on the gas in order to keep it running. At other times the idle was unstable and the SES lamp was on constantly. The vehicle was test driven (low idle was dupli...
December 18, 2013