The camshaft position sensor has gone out on my 2003 Nissan Altima 3.5SE. I need some information on how to install a new camshaft position sensor.

camshaft sensor could be gone if car is warm or not.

follow this link it shows a great pic of its location.
http://www.paulstravelpictures.com/Nissan-Altima-Camshaft-Crankshaft-Sensors/Altima-Crankshaft-Camshaft-Sensor-Replacement-038.html

Here's some pics of my 2003 Altima Crankshaft Sensor. Often mistaken by the Camshaft Sensor because both are identical sensors. They are each located in different locations. I've seen diagrams with the WRONG labeling. Again, this is so confusing for even a mechanic to understand because both sensors carry the same part number which is rare. http://x.nissanhelp.com/forums/members/digitaldxing-albums-2003-nissan-altima-crankshaft-position-sensor-picture331-2003-nissan-altima-crankshaft-position-sensor.html

They may be right. I cannot find the part. here is what the manual says:

REMOVAL & INSTALLATION The camshaft position sensor is located inside the distributor. On some distributors, the camshaft position sensor is not serviceable (replacement parts may not be available separately). If the camshaft position sensor is serviceable, use the following procedure.

1. Remove the distributor cap and wires.
2. Remove the rotor.
3. Remove the camshaft position sensor cap.
4. Remove the camshaft position sensor mounting screws.
5. Carefully remove the camshaft position sensor.

To install:

1. Position the camshaft position sensor in the distributor and tighten the mounting screws securely.
2. Install the camshaft position sensor cap.
3. Install the rotor.
4. Install the distributor cap and wires.

lets see you have a throttle position,coolant temp,intake air,mass air flow,crankshaft position,camshaft position,and i can go on and on

You are incorrect sir. There is a very good Youtube video showing you exactly where it is that is how I changed mine. The Crankshaft is located behind the engine block below and around from the cam sensor which is easly spotted looking at the engine. The crankshaft is in a difficult spot but once you figure out where it is it's easy...ish hope this helps

JUST REPLACE IT AND SET IT IN THE SAME POSITION

In the kit there are two sensor that look identical. The one for the crankshaft has a white paint mark on it near the bolt hole. Make sure that it is in the right location.

No recall information on that situation at this time. if you suspect this, you can contact the dealer and provide your vin and they can look up a new or non released recall for your vehicle. If this recall has just been released, it will take some time to circulate though the recall system. at this time, nothing is showing up on our systems on a recall for the crank and cam sensors.

I had a similar problem. The 2003 altima has a recall for the camshaft position sensor and crankshaft sensor. I replaced them and got the recall fixed. The dealer has to reprogram the computer.