This information is just for reference right now:
Since the XJ uses the older CCD bus and my engine/bosch ECU uses the new PCI bus this means that I will not be able to use the XJ 97-01 gauge cluster. All the important information(engine speed, vehicle speed, water temp, oil pressure etc) is carried on the CCD or PCI.
Basically, if you try to use the XJ cluster nothing will work except the basic things like turn signal indicators.
So to that end a very nice solution presents itself. The TJ gauge cluster is the same basic size and shape as the XJ cluster, but the newer TJ clusters use the PCI bus.
To that end a TJ gauge cluster will replace the XJ gauge cluster in my dash, it will require some basic wiring work, if possible I will de pin the XJ connectors and insert the pins where needed into the TJ cluster. This is the best solution because it keeps the stock wiring intact with fewer splices and therefor fewer places for a future failure to occur.
Anyways, here is what will need to be connected for that to work:
