Hello I have a 2004 Nissan Xterra. It will turn over but not crank. The code I'm getting is P0340. Can you tell me how do I fix this please.

the camshaft sensor is located into distribuitor.......The camshaft position sensor is a basic component of the engine control system. It monitors engine speed and piston position. These input signals to the ECMare used to control fuel injection, ignition timing and other functions.

The camshaft position sensor has a rotor plate and a wave-forming circuit. The rotor plate has 360 slits for a 1° (POS) signal and 6 slits for a 120° (REF) signal. The wave-forming circuit consists of Light Emitting Diodes (LED) and photo diodes.

The rotor plate is positioned between the LED and the photo diode. The LED transmits light to the photo diode. As the rotor plate turns, the slits cut the light to generate rough-shaped pulses. These pulses are converted into on-off signals by the wave-forming circuit and sent to the ECM.

The distributor is not repairable and must be replaced as an assembly except distributor cap and rotor head.

NOTE: The rotor screw which secures the distributor rotor head to the distributor shaft must be torqued properly.

For us to be able to help, please condense your run-on paragraph into a simple question. Perhaps it will help if you simply ask "what does code ABCDE mean"?

I'm not a 100% but it sounds like your camshaft position sensor went bad then caused the other codes to come up because the camshaft position sensor tells the computer how much gas it needs. So it started a chain reaction with the fuel level sensor, fuel temperature sensor, and knock sensor codes. The Fuel temp. sensor helps the engine to know how much fuel to inject as well depending on the temp. of the fuel. The fuel pressure sensor senses the amount of fuel in the fuel rail by reading the internal pressure of the rail, so that's what leads me to believe that it's your camshaft position sensor. Particularly if that was the first code that came up. Hope this helps you.

Check there is power to the rotor and coils.

Yes, if the camshaft position sensor has failed, your vehicle won't start.

The cam shaft postion code is caused by the distrubtor. it is inside of there. Those vehciles had a lot of problems with the ditrubtors.

http://www.obd-codes.com/p0340

lionelloopho: P0340 is a Cylinder signal not getting to the ECM, momentarily while the engine is being cranked.
According to Nissan's diagnostic chart, the recommend checking the following: Harness connectors for the cam positioning sensor,
The sensor it self, The starter, for excessive draw.
The battery for weakness.
Nissan did have a service bulletin out on hard cranking problems.
The symptoms include difficult starting ans spark knock (very sharp rattling sound)
The bulletin reference number is: NTB95-090 You can check with Nissan because the solution warrants the replacement of the ECM.
You may have to tell a little white lie and tell them you have been living with the problem for quite a while because no one has been able to solve the problem and you have just now heard of this bulletin.
Good Luck and let me know how you make out, I'm pretty sure this is the solution.

Here's the diagnostic procedure for DTC code 0340, directly from the service manual:

Yes there is only one tow hook on the 2004 Xterrra SE if you ask me i think its sucks there should be two.