2002 Grand Caravan Misses/Hesitates/Jerks

What is your question?

This is a 2002 Dodge Grand Caravan EL 3.3 V6 with auto Transmission. It has about 150k miles and has lived in FL central/east coast until last few months, now in Colorado Springs CO. It just started recently when it gets warm after driving maybe a half hour around town or maybe sooner on highway to miss and jerk and lose power. I had the codes read from Auto Zone and one of them was a P1391 so I went and replace the Camshaft position sensor, but it didn't help. I also found a couple vacuum lines dry rotted and leaking so replaced those, but that didn't help either. The van run great until it gets warmed up real good then we start seeing this problem. I got a bluetooth scanner and have used several apps to read various live data and it seems that TPS and MAP and O2 sensor are working (at least from what I can tell). I also saw mention of timing issue so wanted to know if that is a likely issue and if so why would it only affect the system when it gets hot? Thanks in advance!