1993 nissan altima wnt start

If the neutral safety switch is misaligned or unplugged, the vehicle will not start.

Only in the movies, I'm afraid. Does one key do everything on this car? I believe it does. If so, remove the lock from the glove box, if it has one, and take it to a locksmith to make you a key. Any easily removable lock cylinder on the car will do also, such as the trunk lock.

Replace the O2 Sensor, reset the ECU, and subject solve.

Good luck.

http://www.autozone.com/autozone/repairinfo/componentlocations/componentLocationMain.jsp;jsessionid=B939812D6A0730111F0F9FA318051968.diyprod5-b2c9?categoryNValue=4294963514&categoryName=Crankshaft+Position+Sensor#

This is going to sound strange but, have someone get over to where your starter is. While you try and start it have them tap on it slightly with a small hammer.
I t could be the brushes are hanging up.
Otherwise, I would pull the starter and have an auto center test it.
Please let me know what you find.

there is whats called a fuseable link on the + side of the battery taht may have burnt out over time!
bst get a auto electrician or a mechanic to come over & test it for you
Good luck Cheers Rob.

Could be the starter. Also how are your batter connections? Nice and tight and clean?? If so than check the single wire going into the starter. Not the battery cable, but the small wire that goes into the solenoid. Unplug that wire and put volt meter into the connector on the harness side and check for 12V, while you turn the ignition to "START" position. If 12V is present, suspect the starter.

HELLO I HAVE A 95 NISSAN ALTIMA THAT DID THIS SAME THING AND IT WAS THE STARTER CHANGE THE STARTER AND YOUR PROBLEMS FIXED

do you tink maybe it might be the ignition switch

check the fuses to the fuel pump...... one is under the hood on the drivers side and the other under the dash. I f both are good then chek to see if you can hear the fuel pump running when you turn on the ignition...if not it may be a bad pump...the other problem may be electrical