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P0401 Diagnostic Trouble Code Discussion for November 2004

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1997 Toyota Camry CE 2.2L MIL Lamp on VIN: JT2BG22K1V
P0401: EGR System Insufficient Flow Detected. vehicle began prob. on last 3 weeks, car will drive for two days and on third day when started the mill would be on sticking its tongue out...
November 06, 2004
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K6W
P0401: EGR System Insufficient Flow Detected. ... still getting code p0401. all hoses and electrical wiring have been tested. including map sensor and 02 sensor. back pressure test was done. this car was received from another shop and i have tested all components related to the egr system and everything i...
November 08, 2004
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K6W
P0401: EGR System Insufficient Flow Detected. ... still getting code p0401. all hoses and electrical wiring have been tested. including map sensor and 02 sensor. back pressure test was done. this car was received from another shop and i have tested all components related to the egr system and everything i...
November 17, 2004
1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCT18W1S
P0401: egr system insufficient flow. ... of weeks ago mil on scan of ecm found p0401 removed egr valve found filter screen completely clogged with carbon also found egr filled with oil pulled plenum to check for clogged passages they were ok replaced valve road test during road test p0401 returne...
November 18, 2004
2000 Honda Accord SE 2.3L MIL Lamp on VIN: JHMCG5671Y
P0401: EGR System Insufficient Flow Detected. I have determined that the egr passages are clogged and need to be cleaned. I can find no information about the best way to clean the passages on this year model. There is not an inspection plate or access plugs. If anyone has done this, do you have to remove ...
November 18, 2004
1999 Ford F-150 Lariat 4.6L MIL Lamp on VIN: 1FTRX17W6X
P0401: EGR flow insufficient detected. We have a p0401 code egr flow insufficient detected. We replaced egr, egr solenoid, dpfe sensor, two hoses from dpfe sensor to egr pipe (with oem hoses), removed pipe and made sure it was clean, checked passages in intake and cleaned throttle plate. I must be ...
November 29, 2004
1997 Toyota Camry CE 2.2L MIL Lamp on VIN: JT2BG22K1V
P0401: EGR System Insufficient Flow Detected. vehicle began prob. on last 3 weeks, car will drive for two days and on third day when started the mill would be on sticking its tongue out...
November 06, 2004
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K6W
P0401: EGR System Insufficient Flow Detected. ... still getting code p0401. all hoses and electrical wiring have been tested. including map sensor and 02 sensor. back pressure test was done. this car was received from another shop and i have tested all components related to the egr system and everything i...
November 08, 2004
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K6W
P0401: EGR System Insufficient Flow Detected. ... still getting code p0401. all hoses and electrical wiring have been tested. including map sensor and 02 sensor. back pressure test was done. this car was received from another shop and i have tested all components related to the egr system and everything i...
November 17, 2004
1995 Chevrolet Blazer 4.3L MIL Lamp on VIN: 1GNCT18W1S
P0401: egr system insufficient flow. ... of weeks ago mil on scan of ecm found p0401 removed egr valve found filter screen completely clogged with carbon also found egr filled with oil pulled plenum to check for clogged passages they were ok replaced valve road test during road test p0401 returne...
November 18, 2004
2000 Honda Accord SE 2.3L MIL Lamp on VIN: JHMCG5671Y
P0401: EGR System Insufficient Flow Detected. I have determined that the egr passages are clogged and need to be cleaned. I can find no information about the best way to clean the passages on this year model. There is not an inspection plate or access plugs. If anyone has done this, do you have to remove ...
November 18, 2004
1999 Ford F-150 Lariat 4.6L MIL Lamp on VIN: 1FTRX17W6X
P0401: EGR flow insufficient detected. We have a p0401 code egr flow insufficient detected. We replaced egr, egr solenoid, dpfe sensor, two hoses from dpfe sensor to egr pipe (with oem hoses), removed pipe and made sure it was clean, checked passages in intake and cleaned throttle plate. I must be ...
November 29, 2004