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P0401 Diagnostic Trouble Code Discussion for October 2006

Insufficient EGR Flow Detected


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Trouble Ticket Help Requests for DTC P0401
Help Request Posted
1996 Ford Contour SE 2.5L MIL Lamp on VIN: 3FALP67L8T
P0401: insufficent egr flow. Hello fellows. I want to thank alll help ahead time. here is my problem . car came in with mil light on 3 codes leancode fixed braken vaccum hose. cat monitor code replaced catand a po401. now i replaced the dpfe cause it was the old metal .one which was corod...
October 03, 2006
1996 Oldsmobile Cutlass Supreme SL 3.1L MIL Lamp on VIN: 1G3WH52M3T
P0401: Insufficient EGR Flow Detected. this olds has a mil light with code p0401:insufficient egr flow. there are no diveability complaints. i first removed egr valve and noted typical carbon build-up on egr valve pintle and passages. clean passages and valve. reset computer, after 3 mile drive the...
October 05, 2006
2003 Ford F-250 Super Duty XLT 6.0L Hesitation, POOR POWER & CODES VIN: 1FTNX21P63
P0401: Insufficient EGR Flow Detected. Hi Ford diesel tecs. Truck came in with check engine light on and poor performance. Fuel filters never replaced. Air filter original. Replaced both and serviced. Road tested and felt no very poor performance. Cleared codes and returned to customer for return t...
October 17, 2006
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K9W
P0401: EGR System Insufficient Flow Detected. pulled egr off to check for carbon,none,ports are open and its eather an egr vacume modulater or the vsv,with scanner hooked up and driving can see egr commanded off and on,but didn't look at vsv, had not looked at info yet.Will be back in Saturday.Which one u...
October 18, 2006
2002 Ford Escape XLS 2.0L Stall VIN: 1FMYU02B92
P0401: Insufficient egr flow. Vehicle originally came in with a no start condition. Tested and found eec main relay defective.Replaced relay. Vehicle started fine-vehicle ran well on road test. Replaced dpfe sensor to alleviate po401-cleared codes and ran egr monitor. When I returned from ...
October 25, 2006
1996 Ford Contour SE 2.5L MIL Lamp on VIN: 3FALP67L8T
P0401: insufficent egr flow. Hello fellows. I want to thank alll help ahead time. here is my problem . car came in with mil light on 3 codes leancode fixed braken vaccum hose. cat monitor code replaced catand a po401. now i replaced the dpfe cause it was the old metal .one which was corod...
October 03, 2006
1996 Oldsmobile Cutlass Supreme SL 3.1L MIL Lamp on VIN: 1G3WH52M3T
P0401: Insufficient EGR Flow Detected. this olds has a mil light with code p0401:insufficient egr flow. there are no diveability complaints. i first removed egr valve and noted typical carbon build-up on egr valve pintle and passages. clean passages and valve. reset computer, after 3 mile drive the...
October 05, 2006
2003 Ford F-250 Super Duty XLT 6.0L Hesitation, POOR POWER & CODES VIN: 1FTNX21P63
P0401: Insufficient EGR Flow Detected. Hi Ford diesel tecs. Truck came in with check engine light on and poor performance. Fuel filters never replaced. Air filter original. Replaced both and serviced. Road tested and felt no very poor performance. Cleared codes and returned to customer for return t...
October 17, 2006
1998 Toyota Camry CE 2.2L MIL Lamp on VIN: 4T1BG22K9W
P0401: EGR System Insufficient Flow Detected. pulled egr off to check for carbon,none,ports are open and its eather an egr vacume modulater or the vsv,with scanner hooked up and driving can see egr commanded off and on,but didn't look at vsv, had not looked at info yet.Will be back in Saturday.Which one u...
October 18, 2006
2002 Ford Escape XLS 2.0L Stall VIN: 1FMYU02B92
P0401: Insufficient egr flow. Vehicle originally came in with a no start condition. Tested and found eec main relay defective.Replaced relay. Vehicle started fine-vehicle ran well on road test. Replaced dpfe sensor to alleviate po401-cleared codes and ran egr monitor. When I returned from ...
October 25, 2006