I think where I am confused is that the DPFE replacement fixed my problem but then it came back 3 months later with the same symptoms. Could that still be related to spark plugs or transmission?
If I understand @MrBusses correctly, he is suggesting that those who still have problems after replacing the DPFE sensor try replacing the EGR tube as well (LB5Z-9E469-B).
Thanks!
Question—I replaced the DPFE and hoses, which made a noticeable difference. However, three months later, the issue came back and has been getting more and more noticeable. Should I replace the DPFE sensor and hoses again when replacing the EGR tube, or do you think I can get away with...
I just registered to post that I read every page in this thread, changed out the sensor, and it fixed the problems I was having. It took about 15 minutes and a pair of needle-nose channel locks. Thanks!