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I have a 98 Ford Ranger 4 cyclinder and the check engine light is on. I went to autozone and had it scanned. Came back with P Code 1401 DPFE EGRCircuit High Input. I have already changed the EGR valve and the DPFE Sensor. All the vacuum lines appear to be okay. At this point I am out of ideas....anyone else ever have this problem or know of anything else I can check.
Considering I have already changed the sensor and based on the info. that you sent. Do you think it would be safe to say I have a wiring problem????...I suppose I could stick it on a meter this evening and find out. Thanks again.