After the engine runs for a minute or so, it starts to sputter like it is starving for fuel. I thought that possibly the fuel pump was going bad, but a fuel pressure gauge shows that the fuel pressure is steady around 40 psi. Checked that the air flow was unobstructed, and it is getting air just fine. A spark tester shows a strong spark, right up until the check engine light comes on, then the spark weakens, the engine sputters, then dies.
I have searched for the diagnostic plug to try to determine why the light is coming on, but have been unable to locate it. I know if is the older style that will require jumpering and reading the flashing light, but I just can't seem to find it.
It is a Ford 460 engine.
Thanks,
-Larry