How much of a pain is it to change and cost you

 

Only one bolt, on the back of the motor. You need to be careful when pulling it out of the block, try to lightly wiggle and turn it until it comes free, dont break it off in the block. Be sure to clean the wires/pigtail. I seen oil get into them before and cause issues. Cam sensor an crank sensor will have the same symptoms for the most part. You could watch it with a data viewer on a scan tool I am sure to diagnose it.