Oops! i think its well past time that i should be moving out of the "introduction" and over here. this is from my yesterdays post

To have readings from the PCM for the 94 B carline the DLC has to include M ( the serial data D29) from the PCM as well as B (D20 output field service enable) and A ( the ground)? I talked to Bob @ OBD1 Diagnostics and asked a few questions and he mentioned that no data would flow unless "M" was connected. It is not! Way back when, i was told i only needed B and A , i did tag the D29 wire coming out of the PCM along with a few other wires for reference noting. So i'll hook D29 up to the DLC in the next day or so and see how that works.