HT4100 4.1, 4.5, 4.9 Discussion, ECM questions in Cadillac Engine Discussion; Basically, I'm going to make an ALDL to serial cable for PC data logging. I'm building a custom computer enclosure ...
- 10-15-07 02:59 PM #1
Basically, I'm going to make an ALDL to serial cable for PC data logging. I'm building a custom computer enclosure right now that I'll be sticking in the Caddy's trunk. Problem is, I've yet to find any data logger that supports the 4.9 engine (surprise surprise).
The questions... Does anyone know the specific number for the ECM/PCM? It's a 7 digit number of some kind, got no idea what it means. Does anyone know the baud rate? I'm probably going to have to end up going through and doing all the set up for using the data loggers myself, so I'm looking for any sort of help I can get. I'm looking for the info for a 91 DeVille, specifically.
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