Cuts Out, Misses: Additional

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the vacuum hoses for splits, kinks, proper routing and connections, and/or damage. Refer to the Vehicle Emission Control Information label.
Inspect the exhaust system for possible restrictions.
AN engine miss condition can be caused by Electromagnetic Interference (EMI). EMI can usually be detected by monitoring the engine RPM with a scan tool. A sudden increase in RPM with little change in the actual engine RPM, indicates EMI is present.