I've been having "something" gradually degrade the ability to start for a few months. Most of the time it started fine, but once in a while, you had to start it several to many times before it stayed running. I thought it might be the fuel filter, so I changed it. It would still start once in a while, but now is becoming a lot more rare.
I've got good crank, spark on at least the front 3, a new MAP sensor. I tested the old MAP sensor, but then bought a new one, anyway. The fuel pump charges the fuel pressure gauge up to 40-45 psi, and when it starts it runs beautifully and stays at 40 psi, even when I rev the engine, so I believe my Fuel Pressure Regulator is then good.
My OBD1 connector is a source of stress: it does not have a wire in it beside the ground lead. It only has 3 conductors. One on the top, and two on the bottom. So, I can't short the diagnostic lead to ground, and see the blinking code on the dash, or on the Innova 3120LaT code reader I rented from Oreilly's.
I pulled the OBD connector to see if a wire had come loose, but found no evidence it has ever been hooked up with the one wire I am missing. How could I have the only 95 Supreme in existence to not have the OBD connector wired properly?
Is there any hope for getting a way to interrogate the confuser, or in actually just fixing the no-start condition? I'd go for fixing the no-start. I don't really care about the confuser.