2001 intrepid clicking relays when trying to start stay clicking when turned off wont start

IT IS LOOKS LIKE A FUEL PRESSURE LEAKING INSIDE THE ENGINE OR DEFECTIVE FUEL INJECTOR LEAKING . TRY DISCONNECTING THE FUEL PUMP RELAY. AND CRANK THE ENGINE IF ALWAYS CRANK WITH OUT OF FUEL (CRANK WITHOUT START) YOU HAVE FUEL LEAK INSIDE THE ENGINE
REMOVE THE INJECTORS RAIL UP EVERYTHING CONNECTED,PUT BACK THE FUEL PUMP RELAY TURN THE SWITCH ON AND FIND WICH ONE IS LEAKING. (GASOLINE IS FLAMMABLE TAKE CARE)

crank sensor. the injectors need a signal to tell them when to open.

Check starter relays & fuses check all fuses for electrical modules
drivers side inner finder electrical pannel for starter check all fuses and relays

You said you hear the pump come on, then said fuel pump not running ???
Check the fuse for the pump, preferably with a test light to verify power is there. Key must be in on position. If the fuse is powered, feel for the fuel pump relay to click when you turn key to on. Put your finger on it while someone turns key to on. If it clicks, check for power at the tank connector on the pump wire, while the engine is cranked. If power there when cranking, the pump must have failed and needs replacing. If the relay clicked with key on, and no power at the pump wire at tank while cranking, then check wiring from relay to pump connector-the fuel wire may have broken.
If the relay doesn't click when key turned on, check for the power feed for the pump at the relay terminal. If the relay has power available to be transmitted to pump, then the relay's signal from the computer or the ground side of the relay's coil signal (from the computer) may need checked.
If the pump is working, and you have good pressure in the lines, check the injector circuit. Also a fused circuit, so check the fuse first. The injector should have a steady voltage signal to it with key on. The injector only has two wires, the power wire and the ground wire which goes to the computer. When the computer momentarily grounds the injector circuit, the injector "pulses", causing fuel to spray out the bottom.

If the passkey system were not working the engine should not crank and the fuel injectors would be dead. The security light would also stay on.
The fuel pump relay gets battery voltage and also voltage from the key switch. The computer grounds the relay to power the pump.
The crank sensor does not come into play until the engine is cranking and it supplies a signal for the ignition and injector pulse.
Are you not getting power from the key switch to the relay, or from the battery side to the relay ?

If it were the immobilizer, you would have a security light that would be flashing or staying on all the time the key is in on. Since the engine cranks over and the pump is working when you turn the key to on and start, the green light may just mean the bulb is burnt out or a connection problem with that wire for the light. Not much of a problem there.
You said no fuel or fire when trying to start-so that is where to concentrate: you first need to verify that the ignition still is working, so check for spark on a plug wire with the engine cranking over. This could be a main fuse or main relay not passing power on to the ignition system and/or the injector circuit. First check for spark, and if you have spark, check the injector circuit (there is a fuse for the injectors-probably under the hood in a fuse/relay block). If you have no spark, you will have to diagnose the ignition system- coils, ignition control module (the ignitor), the crank angle or crank position sensor, finally the engine computer.

If it does not crank check your starter relay, battery and ignition switch.

ECU module is fubar.

Hi , these trucks are notorious for fuel pump issuse. (I have 2 in the shop now).First check for spark if spark is present then we need to check for fuel.if a presure gauge is avail,install the gauge and crank the engine.if presure increases to 50-60 psi fuek is probably not the issue. now if a gauge is not avail you can remove the air cleaner/snorkle assy.spray some carb cleaner in the throttle body,then try to start if (if it starts for a second the problem if fuel.now if it starts go under by the fuel tank,reach up (from the drivers side and unplug the fuel pump plug (4 wire) have some one crank the engine ande check for battery power on gray wire durring cranking,if battery power is present check black wire for good ground.if both power and grounds are present pump is no good.if now power then swap the fuel pump relay w/ same design relay (in the underhood relay center) relays are also a known issue w. the s and t trucks,good luck Thanks

Try the fuel pump relay, usually located behind the right kick panel in the passenger side. If that is working, Nissans have a fuse link to the injectors. If that burns out the car will crank but will not start until you get power to the injectors.