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P0401 Diagnostic Trouble Code Discussion for February 2012

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1998 Chrysler Sebring JXi 2.5L MIL Lamp on VIN: 3C3EL55H9W
P0401: EGR System Malfunction. ... were repaired by addressing those issues, the LT & ST trims were +25 before the o2 replacement and as sweet as could be after, the customer drove the car for about 100 miles afterwards and about that time the light came on again. all the previous codes...
February 01, 2012
2000 Mazda Protege ES 1.8L MIL Lamp on VIN: JM1BJ2211Y
P0401: EGR System Insufficient Flow Detected. Need some help guys, p0401 keeps comming on, first checked passages and checked ok, found faulty egr and replaced. Light came back on 2 days later same code. Have checked boost sensor and boost sensor solenoid and both check ok. wiring to ecm are good.When i l...
February 02, 2012
2003 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTNX21P03
P0401: Insufficient EGR Flow Detected. ... some advice for this truck that it's suppose to come tomorrow for no start.a friend of mine scanned and told me that only had codes for icp but when i was going home yesterday decided to pass by with my scanner to double check and found lots of codes.here'...
February 08, 2012
2003 Ford F-250 Super Duty XLT 6.0L No Start VIN: 1FTNX21P03
P0401: Insufficient EGR Flow Detected. ... some advice for this truck that it's suppose to come tomorrow for no start.a friend of mine scanned and told me that only had codes for icp but when i was going home yesterday decided to pass by with my scanner to double check and found lots of codes.here'...
February 09, 2012
2000 Honda Accord EX 3.0L Poor Idle Quality, Surge, Poor Fuel Economy, MIL Lamp on VIN: 1HGCG1659Y
P0401: EGR System Insufficient Flow Detected. Car came in with all cylinder misfires, random misfire, and egr malfunction/low flow. Replaced intake manifold gasket, plenum gasket, fuel injector o-rings, and cleaned up EGR ports plugged by carbon deposits which caused the misfire. However after reinstallin...
February 14, 2012
2003 Ford Expedition XLT 5.4L MIL Lamp on
P0401: Insufficient EGR Flow Detected (ESM System). ... sanity check, but I need one now Ford techs. I'm actually embarrassed to be posting a Help Request on something like this which should be a slam dunk to fix. Anyway, I gotta 2003 Ford Expedition with a 5.4 in it. Keeps throwing a P0401 - EGR Insufficient F...
February 16, 2012
2005 Jeep Liberty Sport 2.8L low power VIN: 1J4GL485X5
P0401: Minimal EGR Flow Detected. ... filter tight retested. Now codes p0401 p0299 return It seems to have a little more power but is still sluggish. I didn't see any loose intake hoses or anything obvious. I performed a drb compression test which looks ok I think within 5+or-. Should I persue...
February 20, 2012