Are you sure you have no pressure, i.e., measured it or did the idiot light not go out. I recently replaced my idiot light pressure switch with one from Autozone because I thought I saw a small leak from it. It was listed as a 250 application (BTW I have a 230) but I figured that the accessory drives were all the same so it shouldn't matter. Started the engine up and the light would not clear. Now I don't know if it was a bad switch or what, but when I put my old one back in, no issues. BTW, what was the reason you couldn't start up before?
