Here's how to pull the DTC's from your Ford OBDI computer.
But to check for a possible failed timing chain, remove the distributor cap.
Have someone get on the crank bolt with a breaker bar/socket and turn the engine in the normal direction while watching the rotor in the distributor.
Now have that person rotate the engine in the opposite direction while watching the rotor in the distributor.
If the crankshaft can be rotated more than just a couple of degrees before the rotor in the distributor begins to rotate, the timing chain is stretched.
If you want to check if the plastic teeth on the cam gear has come apart, drain the oil, and inspect the oil for any pieces of plastic.