i just bought a 1985 300zx with 100640 miles. i got the car home after a two hour drive park and shut it off and has not started since. the security light was on when i first tried to start it and it wanted to start but would not rev up to idle. i tried to start it the next day and i wasnt getting any fire out of the motor. replaced cap rotor plugs and wires i'am getting spark i pulled off the fuel line after the filter and im not getting any gas. i tried testing the pump but dont think i did it right plz help me out if you know anything.