Huntington Beach Police arrested 39-year-old Christopher Olague last month, after he allegedly molested an 8-year-old girl in his car.
Police now say they also found thousands of child pornography images on his computer, including pornographic images of a 6-year-old relative.
Olague has been working as a pastor at Refuge Southland Church in Buena Park as well as a soccer coach for the American Youth Soccer Organization.
If convicted, he could face life in prison.