I had a problem with stalling randomly and running hot. It was driving me nuts. I don't have a check engine light (PO killed it I assume).
I had replaced the fuel pressure regulator and fuel filter but still no change. I finally borrowed my brother's scan tool and found a couple o2 sensors reading lean and a MAF code, along with an EGR code. I cleaned the MAF with spray cleaner and that seems to have straightened out the issues regarding running hot and stalling. I'm not concerned with the EGR. Man was I glad to have her back to normal...