I have the instructions from Michael Maroschak, SccoO, to convert the S. C. oil pressure idiot "gauge" to a gauge which reflects actual oil pressure. However, those instructions are unclear, at least from my point of view, when looking at the back of the cluster. My 1989 SC has a removeable curcuit board with two resistors, one all red and one with stripes. I don't remember enough of electronics to decypher the markings,so which one is it? Assuming that it is in fact one of those two. I need some help here. Any clarification would helpful and appreciated.