There was a huge bus change in 92. Only 90-91 electronics will work with 90-91 computers. Likewise, 92+ electronics that used the bus will only work with 92+ computers.B10alia said:I assume that the bus is OK, but now I'm not so sure, was there any major change in how the bus works from 1989 to 1995 on these vehicles, like the one that Bob Lincoln was up against?
Simple, mopar used similar, if not the same, wiring harness for different applications. In an earlier post I mentioned to tap the CCD bus wires at the computer instead. The diagnostic connector that you are connecting it at may not be connected to anything. The transmission diagnostic connector was only used on 4 speed transmissions, if I remember correctly you have a 3 speed. Again, that connector may not be connected to anything.B10alia said:John-- I have the twisted pair of wires at the TDC, doesn't this mean there must be data there? I.E. how could the pin on the ECU be wired and have no data on it?