03' 4.4i E53 crank no start

[Gpesantes10]

really need help guys! i recently replaced my valley pan. put it all back together and the car cranks but wont start.

hooked up OBD and got a bunch of fault codes.

P0201
P0202
P0203
P0205
P0206
P0207
P1525
P0347

please help -_- i have a love of cars and a love of doing things myself. i was gifted this car by my uncle and i took it upon myself to get the car up and running. any help i can get would be amazing.

[jclausen]

If it ran before the work and now it does not I would check the work and all connections