power steering won't cause the check engine light to come on . . .
what year is your bronco? . . .
could of fried an o2 sensor or map/maf or something playing in the water . . if it's an older one I think pulling the code is easy . .I have an old school check engine "key"(basically it's just a peice of metal that crosses 2 terminals on your diagonostic port) . . might have to see if I can locate it (or jusr use a paper clip) but you have to find out which 2 prongs it is and the proper persedure . . if I get a change I'll look for that key . . has a nice little booklet thing with it with codes and percedures in it . .