Oddly enough, I got the PD06DE code after changing oil and filter the last 2 times. I have not been able to find an explanation.
It throws the code under a hard pull on the interstate when the jeep downshifts after the engine is completely warmed approximately 100 miles after the oil/filter change. I use Napa Gold Filter and Napa Synthetic 5W-20 Oil. The code lasts about a day, and then it can be cleared and stays off until the next oil change. I've wondered if the air in the filter cartridge working through the system causes increased pressure until it works completely out.
If anybody finds a definitive answer on this annoying and seeming unnecessary code, please update the post.
