1988 Electra wont start
 

Hey, i have a problem with my 1988 electra. It was working fine and all but then we opened the right rear dorr and the engine just stopped. Ever since that we havent got the engine running again. It cranks but will not start. The fuel pump is working and i have changed the coil pack but we do not get any spark from it. Please help.

The door incident may be a coincidence.
You didn't state whether all the fuses were checked or not.
Tests need to be done to confirm the signal is coming from the crank sensor , which could be the problem since you replaced everything in the line to provide spark, except the ign sw. It can crank with a defective sw and still not start.

All fuses are checked and none was broken. Can it be something with the security system that is broken?

If the battery is located under the back seat, you might have to lift up the carpet and door sill and you might see a cable there that supplies power to the engine compartment.