Question about 2002 Ford Ranger Regular Cab
2002 FORD RANGER 6CYL. 4.0L I GOT A P1400 TROUBLE CODE SO I REPLACED DPFE SENSOR. THEN I GOT A P0401 CODE. WHAT COULD THIS BE?
Exhaust gas recirculation flow insufficient detected.
Maybe you got a bad DPFE sensor, or the pintel inside the egr valve is not opening all the way causing the insufficient flow.
Posted on May 14, 2010
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Posted on Jan 02, 2017
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The code P1400 reads "DPFE Sensor Voltage Low" (Ford, Mazda). Often it's caused by a bad DPFE sensor or clogged EGR passages. DPFE stands for (Differential Pressure Feedback EGRI) I would clean the EGR valve which cost nothing. If that does not cure the problem, you may need to replace the DPFE sensor, which does cost, and it may not fix the problem. If you want to be sure you replace the correct part, then visit your local Ford dealer.
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