ON GOING DPFE SENSOR REPLACEMENT!!!
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.
2001 Ford Ranger SuperCab XLT 4.0L V6 SOHC
LT265/75R16 Toyo Open Country MTs
Black Brush Guard with Twin KC Daylighters
AFE Cold Air Intake
Superchips Flashpaq 1865
Superhide Mossy Oak Camo Seatcovers
Panasonic Sound System with 8" sub, tweeters, etc
Tuff Country T-bar Keys
Flowmaster Super 44 Dual Exhaust (2 3/4Si, 2 1/4 Do)
NEW LUK CLUTCH!