Originally Posted by
Michael
I am assuming you mean the CSV/CPR plug swap?
If so then you have a fuel issue not a spark issue and to be more precise a hot start problem. If it happened quickly, then it's probably easy to diagnose especially if you have been in the engine lately...have you been in the engine lately?
If no, check for lose or broke vacuum lines around the back of the left valve cover where the CPR is. Also check the o rings in the primary pressure regulator. I replace mine about every 2-3 years since it's cheap and easy and hard to tell if they are bad just by looking at them.
Truth us a dozen things can cause a hot start issue, but some quick "dead reckoning/common sense" may zero you in on the culprit quickly with minimal effort.
The "plug swap" forces the CSV to fire no matter what the coolant temp is, so you might start at anything that could cause the fuel mixture to go south. What fuel pump setup are you running?