Quote Originally Posted by HumVdub View Post
It seems that many people in this hobby are hell bent on reinventing the wheel. Why over complicate things?
So instead of connecting two wires total to an OBDI port you propose 2-4 wires per sensor-and call it simpler?

Quote Originally Posted by xsputnikx View Post
currently there is no universal obd1 program available... and the program would most likely have to be written.....
Yup.

The protocol for your 92Dodge would most likely be SCI (sorry no links). While GM's ALDL protocol has been fairly well documented SCI, AFAIK, has no info out there.