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Fuel pump will only have power for 2 seconds unless engine is cranking or running. Most common cause for ur problem is a broken dowel pin in the cam gear causing the timing to be out just enough to shut itdown
Sounds like maybe the main computer is bad. When you cranked the engine there is not any indication that it is firing. If you have changed the fuel pump and coil and it still wont even fire, the computer is most likely the cause. Even if the timming was off you would still get some indication that it was trying to start although it probably would not if the timming was off, but the fact it's not even trying to fire yeah that's my take.
Could be the main or fuel run relay located in the compartment under the luggage rack, passenger side, main relay also, fuse for the fuel relay 8amp. Electronic Control Unit is also located there.
Could be electrical, Hook up a timing light, three leads: Power, Ground, and one that goes around the wire to #1 cyl. Turn the engine over and see if there's firing. Note: u can check all 4 spark plugs this way.
Fuse lead goes to pin 30 of the fuel relay, u can jump 30 across to 57 and check for the pumps running, if not, change-I suggest both relays, main and fuel run relays. Both pumps get their 12v DC from the fuel run relay, both should be running when you switch ignition switch to on, then a tachymetric signal is fed from the coil to the relay to keep it running.
DOES IT HAVE POWER/ A GOOD BATTERY? IF SO CHECK & SEE IF IT IS GETTING FIRE OUT FROM THE COIL PACKS,THE QUICKEST WAY TO SEE IF IT IS FIRE OR A FUEL PROBLEM IS SPRAY A LITTLE STARTING FLUID IN THE THROTTLE BODY,& IF IT CRANKS & THEN CUTS RIGHT BACK OFF ITS A FUEL PROBLEM,FUEL PUMP FUSE,FUEL PUMP RELAY,OR FUEL PUMP,& OR FUEL FILTER, IF ITS NOT GETTING FIRE IT COULD BE A CRANK SENSOR, A CAM POSITION SENSOR,COIL PACK(S) OR A FUSE OR RELAY.
First check all fuel pump relay is working. It should say on the fusebox cover which one it is. Also check for any blown fuse associated with the engine. The fuel pump wiring should be accessable from the back area under the carpet there is a cover which can be opened by removing some small bolts or screw. Make sure the wire to the pump is getting power when the engine is being cranked.