Note on Intermittents
WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
With engine running, manipulate affected wiring. If fault is induced, code will set and wiring should be repaired for intermittent open or short to ground. Disconnect and reconnect distributor connector ECM connector and ensure they are latched.