ON GOING DPFE SENSOR REPLACEMENT!!! - Ranger-Forums - The Ultimate Ford Ranger Resource

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Old 10-07-2009
davidw's Avatar
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Join Date: Aug 2008
Location: Bow,WA
Posts: 207

ok. i own a 2001 ford ranger v6 4.0l SOHC. my CEL comes on. code is p0401. EGR FLOW INSUFFICIENT. ok replaced the dpfe sensor like my mechanic said. worked!....for 6 months. same code... ok must be the EGR valve itself. got a new one. works great... 5 months later same thing... replaced sensor.. AGAIN.. i am currently on the same problem 3 years later with a new EGR valve. going on 5 DPFE sensors. and the same code every 4 to 6 months. truck has no running problems AT ALL. just the $%#@@#% CEL. any ideas? note: light goes on once. once the sensor is changed. stays off for a long period.
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Old 10-07-2009
Ford04Ranger4.0's Avatar
Join Date: Dec 2008
Location: Plattsburgh, New York
Posts: 3,390
Get a FoMoCo DPFE sensor, check the lines
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