| | Re: Trouble starting 93 2.5L Splash (stick)
First place to be looking is for loose wires, specifically the ground wires. If there is any corrosion on the battery cables, power and ground to the solenoid, or at the connection to the starter, those would be things to check. Next would be to pull the starter and have it checked. It's old enough to need replacing. After that I would move on to the solenoid.
This is how I would go about diagnosing the problem ant fixing it. From your brief description, my first though is bad connections though.
I got my Jesus on the dashboard, but the Devil's under my hood!