P1400 code, 02 Explorer

Aug 22, 2006 5 Replies

The Service Engine Soon light came on and I checked the code and code P1400 was displayed. After a bit of research I found that usually means the DPFE sensor is bad and since it was only $35 and an easy replacement I swapped out the part, following the procedure in the Haynes repair manual.



I reset the code and it stayed off for 3 days / 300 miles and then it came back on.



What else should I look at?



Thanks, Jim



Does it set P1400 when you pull it again? Did you disconnect the negative battery cable for +/- 1/2 hour?

Carl

Yep, P1400 again immediately after resetting it. I disconnected the negative battery cable during the repair but haven't tried it since then. Will give that a try Saturday morning.

Thanks, Jim

I disconnected the negative battery cable for 1 hour yesterday and after running a few errands the Service Engine Soon light came back one.

Any more ideas?

Thanks, Jim

Have you taken the EGR system apart to clean it out and inspect the parts ? There is a good chance that you have a plugged up EGR tube.

No, will look at that this weekend - thanks,

Jim

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