Lessons learned...When this is off you should also replace...
 

I had my starter replaced. Then a month later the crank position sensor went out.

Lesson learned, if the starter goes out, this is about the same time the crank position sensor (CPA) may go out, so replace the CPS when the starter is off.

Post your lessons learned. When ___ is off replace/clean/adjust ____.

What should you have replaced when something else was off?