I have a 71 240z. The passenger door won't open. Using either the inner latch or outer door handle releases the latch/lock about 1 in. There it catches and won't release further. I have tried poking thru the gap with a long screwdriver, removed the door panel and tried there but I can not get it to release.

This is a pain.. but you need to look carefully inside the door panel with a light to see where you have to lift it up to get it open