connection time T2 to T1 at Pudong Airport

I will be arriving at pvg from the US at 15:05 at terminal 2. I have a connecting flight to DYG at 17:35 at terminal 1. My connecting flight will be on a separate ticket so I will have to check in to get a boarding pass. I will not have any checked luggage, just carry on. Is the two and a half hours long enough to get through customs, immigration, change terminals, check in, and get through security and make this connection in time?