Neutral safety switch?

Where is the neutral safty swith on this car. On hot days some times it will start and sometimes not. But it always cranks. When it will not start I have to trick it by turing key to on position put foot on brake then slide shifter to reverse then hold key to starting position and slowly slide shifter towards park and in the middle it hits a sweet spot and starts. Go figure? So what is the component causing this problem.

How do you get to it and out it on I have the part and need to put it on