2.5L P0104 and PCV Valve
So on my ride back from Cleveland Tuesday my CEL popped on. So I stopped at an AZ and had them check it. I got P0455 and P0104. The 0455 is an old code still stored from when I forgot to snap my gas cap on a few months ago so I'm worried about it but the dreaded P0104 EGR flow code is a new one. I understand this code is common, especially on 4.0s because of the "elbow" tube that cracks. So I've found a TON of thread about that but none for the 2.5L.
I figure it's either the EGR, one of the lines/tubes, or the DPFE sensor. Anyway to pinpoint it at home and what/where are the lines/tubes I need to look at? Where is the DPFE sensor? I am also experiencing some surging while driving and lurching when starting.
Also, the one maintenance item I have yet to address is the PCV valve. I have never heard of it until I saw it in a regular maintenance thread. I figure mine is due, anyone know where to locate it on my engine?
2010 Toyota Tacoma Access Cab 4x4 Auto V6
2000 Ford Ranger 2WD 2.5L & 1976 Ford F150 Supercab 2WD 302