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9

1999 Ford F150 401 Code: Insufficient EGR Flow - DPFE Sensor Replacement and EGR Passage Cleaning Solution

My 1999 Ford F150 recently triggered the Check Engine Light (CEL) with a persistent 401 code indicating insufficient EGR flow. After researching forums, I found that replacing t...

99 F150 401 | P0401
2005-08-30
2 comments
2

2000 Mustang V6 P0401 Code: Exhaust Gas Recirculation Flow Insufficient - Diagnosis and Fix

Hello, I own a 2000 Mustang V6 with 87,000 miles. I recently picked up the P0401 diagnostic code using an OBD-II scanner. The vehicle runs roughly when cold and exhibits detonat...

2000 Mustang V6 | P0401
2005-08-22
3 comments
1

1996 Mercury Sable 3.0L V6 P0401 and P0430 Fault Codes: Causes and Fixes

Last night, when I started my 1996 Mercury Sable with the 3.0L V6 engine, the Service Engine Soon light was illuminated. After connecting a OBD2 scanner, I found two diagnostic ...

1996 mercury sable | P0401
2005-08-16
0 comments
2

OBD Code P0401 and P0720 in 2001 Ford Taurus: Causes, Fixes, and DIY Replacement Guide

I own a 2001 Ford Taurus that is currently displaying OBD diagnostic codes P0400 (Exhaust Gas Recirculation Flow Insufficient) and P0720 (Speed Sensor Circuit Malfunction). The ...

2001 Ford Taurus | P0401
2005-08-06
1 comments
9

P0401 EGR Flow Insufficient Code on 1998 Ford F-150 4.6L Engine - Diagnosis and Fixes

My 1998 Ford F-15

98 Ford F-150 4.6L | P0401
2005-06-23
3 comments
H

P0401 Honda Accord V6 2000 also question about transmission

Hello all! Glad I found this cool forum. I have a 2000 Accord and the check engine light came on. Honda told me it was error P0401 EGR Flow insufficient. Wish I had known abou...

Honda Accord V6 2000 | P0401
2005-06-06
14 comments
F

P0401 Diagnostic and Fix for Ford Explorer Sport Trac - DPFE Sensor Solution

Hello everyone, My Check Engine light came on, and after scanning at AutoZone, they reported a P0401 code indicating EGR insufficient flow. I replaced both the EGR valve and EG...

FORD EXPLORER SPORT-TRAC | P0401
2005-05-01
10 comments
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