What year is your car?

1999 perhaps?

 

How do I completely disassemble the anti theft system in my 1995 nissan maxima?

 

I think you mean disable, not disassemble.

I'd start by looking at the Factory Service Manual (FSM) and finding the "black box" that controls it and go from there. FSM is a free download, available in my signature.

 

Take out the Theft Warning relay and jumper pins 3 & 4 in the socket.

You don't have a door key? How do you start the car? Normally when the alarm goes off, you lock the doors with either the key or the remote and then unlock them.

 

My 1995 Nissan Maxima has been shutting down on me at random moments while driving and has left me stranded a number of times. After consulting with a mechanic friend, he seems to think that it’s likely caused by the loss of the current to the fuel injector. Can someone verify or confirm if you have had a similar experience? Thank you!
I HAVE READ THAT IT CAN BE A BLOCKING SYSTEM ..