Arthur,

Yes there is play in the throttle cable while at idle. As for the OVP, I think I have found it after reading some of the other posts. Mine sits behind the battery, close to the firewall. It is a small, square black plastic box with a white plastic top along with a clear plastic cover. Under the clear plastic cover is one fuse, although it looks as though there is room for two fuses. The fuse is a 15 amp, blade-style fuse. Not the regular tube, bullet style like in the main fusebox. The fuse appears to be in good shape. What should I do next?

Thanks again for the help,

John B