Dreaded P3190

Got this new prius that all it needed was a hybrid battery.

No problem put the hybrid battery in and the car ran and drove fine for a few miles.

Engine was starting and stopping as it should ( I think)

Then all the sudden the car popped the P3190 code and shut down.

I towed it home and began troubleshooting. At first I thought it was fuel pump, since when i applied 12V to the pump directly, it didnt move. So i replaced pump. Pump went in pretty easy, but same issue. Checked power supply coming into connector when the car cranks, it looked fine 14v.

Throttle body and MAF clean, all hoses look connected, no other codes. Changed spark plugs, no change.

I can smell unburnt fuel coming out of exhaust when its trying to start (the 8 second crank before timing out)