2007 LS 460 171.000 miles
Dash lights: AFS, VSL, check engine, traction control, Exclamation

My mechanic reset the codes so we can address issues as they occur.

While these lights have been on for a while, just this afternoon, engine was a bit rough and then smoothed out (80 degrees outside) after start

1. If Engine Control Module: Suggestions on used or after market? eBay cautions?

2. If catalytic, suggested supplier?

3. Opening the floor for other guidance…go