Can't believe there isn't a thread here already, so I'm starting one.
Technically, I don't have a broken spark plug stuck in the engine. What I have is the end of a compression tester stuck in the engine. Technically, though, it's the same problem.
The internet is full of advice on how to remove broken spark plugs from truck engines, but nothing for the PRV. I can't find anything long and skinny enough to get down in there and grip what's left of the thing.
Suggestions?