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P0401 Diagnostic Trouble Code Discussion for November 2011

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
2007 Mazda CX-7 Touring 2.3L Stall VIN: JM3ER29377
P0401: EGR System Insufficient Flow Detected. my main concern is the throttle actuator code. i test drove the car several times and looking at the pids for the tac looked normal and car drove fine. she says the car will act up intermittently and have no throttle response . i am unable to duplicate the pro...
November 09, 2011
2000 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF55E7Y
P0401: Insufficient EGR Flow Detected. Got this one from a shop down the road. Poor guy did all the basics and is still having a code set from time to time. One thing I noticed right off was on both failure records it had when it got here was a BARO pid of 74 in Hg. Wow, that must be a deep hole wh...
November 11, 2011
2004 Ford Freestar SES 3.9L MIL Lamp on VIN: 2FMZA57614
P0401: Insufficient EGR Flow Detected (ESM System). This Freestar sets a P0401 (insufficient EGR flow) code immediately, checked vacuum sources and electrical. Pulled upper plenum and cleaned passages. The only monitors pending are the Evap & EGR. This EGR has the control solenoids, BPFE, and position senso...
November 22, 2011
2004 Ford Freestar SES 3.9L MIL Lamp on VIN: 2FMZA57614
P0401: Insufficient EGR Flow Detected (ESM System). This Freestar sets a P0401 (insufficient EGR flow) code immediately, checked vacuum sources and electrical. Pulled upper plenum and cleaned passages. The only monitors pending are the Evap & EGR. This EGR has the control solenoids, BPFE, and position senso...
November 23, 2011
2005 Hyundai Santa Fe GLS 3.5L MIL Lamp on VIN: KM8SC73E25
P0401: EGR System - Insufficient Flow Detected. ... all. This Santa Fe was at another shop for P0401 hard code. They replaced the egr & solenoid. When it came to me, I checked tsb's in regard, found one and followed the diagnostic flow chart. I found several collapsed vacuum hoses and replaced them. I r...
November 25, 2011
2000 Ford Taurus SE 3.0L Cuts out VIN: 1FAFP58S7Y
P0401: insuffient exust gas rec flow detected. this one is crazzy,this car has a green light,with a tire on the dash in the left upper corner.i went to aldata and it says its the traction control indicator,ok aldata dose not give enouh infomation about this system,I test drove this car and at 40mph the gre...
November 30, 2011
2007 Mazda CX-7 Touring 2.3L Stall VIN: JM3ER29377
P0401: EGR System Insufficient Flow Detected. my main concern is the throttle actuator code. i test drove the car several times and looking at the pids for the tac looked normal and car drove fine. she says the car will act up intermittently and have no throttle response . i am unable to duplicate the pro...
November 09, 2011
2000 Chevrolet Impala 3.4L MIL Lamp on VIN: 2G1WF55E7Y
P0401: Insufficient EGR Flow Detected. Got this one from a shop down the road. Poor guy did all the basics and is still having a code set from time to time. One thing I noticed right off was on both failure records it had when it got here was a BARO pid of 74 in Hg. Wow, that must be a deep hole wh...
November 11, 2011
2004 Ford Freestar SES 3.9L MIL Lamp on VIN: 2FMZA57614
P0401: Insufficient EGR Flow Detected (ESM System). This Freestar sets a P0401 (insufficient EGR flow) code immediately, checked vacuum sources and electrical. Pulled upper plenum and cleaned passages. The only monitors pending are the Evap & EGR. This EGR has the control solenoids, BPFE, and position senso...
November 22, 2011
2004 Ford Freestar SES 3.9L MIL Lamp on VIN: 2FMZA57614
P0401: Insufficient EGR Flow Detected (ESM System). This Freestar sets a P0401 (insufficient EGR flow) code immediately, checked vacuum sources and electrical. Pulled upper plenum and cleaned passages. The only monitors pending are the Evap & EGR. This EGR has the control solenoids, BPFE, and position senso...
November 23, 2011
2005 Hyundai Santa Fe GLS 3.5L MIL Lamp on VIN: KM8SC73E25
P0401: EGR System - Insufficient Flow Detected. ... all. This Santa Fe was at another shop for P0401 hard code. They replaced the egr & solenoid. When it came to me, I checked tsb's in regard, found one and followed the diagnostic flow chart. I found several collapsed vacuum hoses and replaced them. I r...
November 25, 2011
2000 Ford Taurus SE 3.0L Cuts out VIN: 1FAFP58S7Y
P0401: insuffient exust gas rec flow detected. this one is crazzy,this car has a green light,with a tire on the dash in the left upper corner.i went to aldata and it says its the traction control indicator,ok aldata dose not give enouh infomation about this system,I test drove this car and at 40mph the gre...
November 30, 2011