Mechanic Q: Starter wiring?

I recently replaced my starter on my small block chevy & think I have the wires crossed on the solenoid. Which side of the solenoid does the thicker wire go , towards dr side or pass?

Mechanic Q: On a 350 cu in engine, when you replace the starter which wire goes where?

On my small block I replaced the starter & think I crossed the wires on the solenoid. Which side of the solenoid does the thick wire go?

Mechanic Q: what does the code P0442 mean??

The check engine light is on giving a P0442 code. I have replaced the gas cap & the purge solenoid and the light came back on.

Mechanic Q: My security light comes on occasionally while driving or?

My security light comes on occasionally while driving or after starting is this a sign of pending trouble?