Is it possible to "clean out" a clogged DPFE sensor and have it still be operational? After giving the parts monkey my $55 and replacing my old one the tinker in mean begain wondering. Out of curiousity, I drilled out the rivets and discovered the accumulated combustion byproducts.
The DPFE replacement seems to be a common solution to the P0401 "ERG insufficient flow" CEL code. Is a DPFE considered a "normal wear" part that will eventually need replacement, or is the clogging a byproduct of some other problem?