The crankshaft angle sensor is on the left side of the engine behind the starter motor so it will need to be removed, start by disconnecting the battery. Here are the instructions on how to change the crankshaft sensor out. Check out the images (below). Let us know if you need anything else.
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.