P1401 Help
10-21-2008, 11:12 AM
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P1401 Help
My 1998 F-150 with the 4.6L with 88K miles is throwing the P1401 Code. Before it was the P0401. That problem is fixed. The P1401 says I have High Circut Voltage to my DPFE Sensor. I replaced it, and the light is still on. I cleared the code at my auto shop class. Then the light came back on after 3 drive cycles.
Anyone have any suggestions on to which my problem is occuring?
-Alex
Anyone have any suggestions on to which my problem is occuring?
-Alex
12-01-2008, 03:41 PM
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Have you tried replacing the EGR valve? I have a P1401 code also and have not had a chance to try a new EGR valve, but I have read other threads on the problem. It seems the P1401 code is triggered by improper DPFE circuit voltage which is caused by unacceptable vacuum from a faulty EGR valve.
Someone please correct me if I’m wrong.
Someone please correct me if I’m wrong.
