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Thanks for the info! I was swapping a 98 4r55e valve body into a 96, thought maybe I could use the 98 EPC in the 96 - I will get the green screen EPC for the 95-96 4r55e. Found this one on eBay, a little rich for me-...

Thanks James, I tried the valve body swap, I did use the EPC from the 98 (the green EPC from the original valve body had an electrical connector damaged in removal). Had the same symptoms with the new valve body, so proceeding with transmission rebuild kit. I will look for a green EPC to put...

Trying to fix my 96 ford explorer 4.0L transmission issue. It has 196K on it, and has trouble going into OD, having intermittent slipping when shifting from 1st to 2nd. Got a 98 4R55e transmission for parts, can I swap the valve body from the 98 4R55E into the 96 transmission? I know the 95-96...

No more codes!!! The replacement DPFE sensor from Autozone works fine, no more P0401/P0402 codes! I guess I couldn't believe a new sensor would not work correctly. Lesson of the day : Don't buy the $25 DPFE sensors from eBay, go with the $60+ DPFE sensors for best quality. :D Went and passed...

Found a great website for testing components of the EGR system, http://easyautodiagnostics.com/ford/4.6L-5.4L/how-to-test-the-egr-system-3 Tested the new DPFE sensor I installed, and was not able to get it to go above 1 volt on the top #1 wire on the DPFE connector when applying vacuum by mouth...

P0401, P0402 codes still coming back Still getting P0401 code after driving for awhile, P0402 comes later. Ran live data scan tool, it shows the EGR working for a time, then faulting. If I turn it off and turn it on, it will work for a time, EGR fluctuating normally, then faulting after a...

Well, the codes came back today after replacing the EGR valve. Did a live data OBD2 scan with the Forscan program on the DPFE voltage, it was fluctuating between .68v and 1.16v, I think thats in the normal range. Still at a loss what to do next, my mechanic friend thinks we should look for...

toypaseo - they look like standard black hoses - if the codes come back today, will look at replacing those too.

Got EGR valve replaced what an ordeal! Got the EGR valve replaced finally. Tried on my own wrenching it, couldn't get it to budge. Took it over to a mechanic friend of mine, he ending up using a die grinder and an air chisel, but we finally got it off!! :) He cleaned up my EGR-to-plenum hose...

Thx 1998exp, I took off the hoses connecting to DPFE, they both look in good order and were not clogged. They weren't brittle either - maybe recently replaced? They are connected to the plastic DPFE in the same order that they come off the EGR exhaust pipe, is that the correct order? SoHK...

233,000 on 96 Explorer Sport 4.0 OHV

I recently purchased a '96 Ford Explorer Sport 4x4, w\233,000 miles on it. Took it to emissions in order to register and title it, and it had 4 trouble codes, P0401 insufficient EGR flow P0402 EGR flow excessive at idle P0340 camshaft position sensor circuit malfunction P0420...