LOL!

Remember that AD campaign "This is not your father's Oldsmobile"? This car predates that slogan and is indeed my father's Oldsmobile. No in-dash CRT on this old baby. This car is good for nothing but trips to the supermarket and testing new devices (he he).

I tried adding some counters based on offset values from similar engines but not getting desired information (all 0.0's). I think I need to know more about what the car is spitting back to me. Is it time to buy a shop manual? Haynes has nothing about ECM stuff. Is there any source for what may be in this data stream?