P0401 Diagnostic Trouble Code Discussion for October 2004
Insufficient EGR Flow Detected
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| Help Request | Posted | |
| 1998 Dodge Grand Caravan SE 3.3L MIL Lamp on VIN: 1B4GP44G1W P0401: EGR System Malfunction. hello techs. looking for some help on this egr. code po401 we are not real up to date on this chrys. service eng lite ,on after clearing may stay off for weeks this van runs new just trying to see if more than egr. valve replacement is required ?? cleaning int... |
October 05, 2004 | |
| 1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX P0401: egr flow. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h... |
October 05, 2004 | |
| 1999 Ford F-350 Super Duty XL 6.8L Hesitation, Surge, Misfire VIN: 1FTWW33SOX P0401: egr flow. Hello, I have a po171,po300, and a po401. The dpfe was not showing the proper voltage so I replaced it ,now working and no more 401. This truck pings uphill and runs very badly,(feels like miss) but runs perfect with no load. problem occurs only under med to h... |
October 06, 2004 | |
| 1997 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1GZHX52K8V P0401: Insufficient EGR Flow Detected. I am stuck and looking for help this system is fairly simple. I have good flow from the exhaust and I do not have excesive backpressure at the egr. The engine vacumm is good at the egr valve. The valve can be commanded open with the tech2 and does affect engin... |
October 22, 2004 |
