This is a quote from another TJ owner who has run both the Crown and Dorman OPDA:
"I have both, ran the Dorman for 4,000 miles, the crown for almost 500 miles so far as I was one of the first to buy it on 6/8. The Crown has a better build quality but has one minor issue, the CPS in the OPDA housing is junk. Not a big deal, it's easy to swap out.
I can't explain why but the Crown CPS sensor caused a shudder/hesistation, then a rough idle, then almost exactly at the 200 mile point it caused several trouble codes (CEL) to show up including p0175, p0151, p0153. Bad 02 sensor? I thought but as soon as I swapped out the Crown CPS for my original Mopar CPS sensor, the CEL was gone, all codes were cleared, and it runs/drives 100% now. No other issues with the Crown unit as it works perfectly otherwise.
I wouldn't let the CPS sensor deter anyone from buying the Crown OPDA, just don't throw out the one from the Mopar OPDA. It's one 10mm on the side of the housing so it's easy to swap out in 10 seconds. I think the PCM is just "overly sensitive" to non-OEM sensors based on what I've read here."
He hit the nail on the head. The Crown OPDA from everything I have hear is a better design, I've heard that a lot. The issue with the Crown OPDA (and even the Dorman one from what I've heard) is that the CPS sensor attached to it seems to have issues. The quick solution to this is to swap the CPS sensor out on your replacement OPDA with the OE Mopar CPS sensor that came off your vehicle. This fixes all the issues and is very well documented.