Thank you for the pointer - I've seen in the catalog two parts:
- an ignition relay
- an ignition switch
LMP, you said about the ignition switch failing and causing intermittent operation/misfires?
I'm guessing that these parts are common between the 3.1 and 3.8L Pontiac TS.
Do you have an idea where the ignition relay might be located on the TS? I might check/change that also while we're at it.