I hear ya. I used to have the exact same problem a few years ago, back when I could only do a few dips. I don't know if it's the body not being used to that type of contraction or what. Despite the pain I kept working on the dips in belief that the pain will subside, and it did. The only time dips hurt now is when my triceps are burning on the last reps of weighted dips.
Also a note to something you said earlier about maybe dipping to deep. I don't think that's a problem, your body mechanics should prevent you from dipping *too* low. Dipping too low should cause shoulder pain, not chest pain. Generally when your shoulders are a few inches below your elbows, as in you have a a moderate downward slope from elbows to shoulders is deep enough, and unless you want to, not recommended, it's not necessary for good technique to go any lower.
Now, it could be that it's not just temporary pain. Since you're 230, I image you are pretty big and have a wide arm span. Try dipping on wider bars?
Your technique could also be a little off. You're supposed to dip forward and down on the dips, not just down, so that your forearms are pretty much perpendicular to the bars. Now most of the time your body just goes down in the right path without you consciously trying to do so, but it might be that you're trying to go just straight down.
Anyways, you can try the things I mentioned and see if it helps any.
I hope you resolve the problem soon because dips are the ****, I quit bench press and now just do weighted dips.
Good Luck :cheer: