- Mar 2, 2002
- Dark Blue 1982 Trans Am(s): Polo Green 1995 MN6
You need a scan tester do you can look at the spark timing in the data list and see what the ECM is commanding as far as spark.
To Hib's point... some type of real time scan would be great.
Datalogging would let you see what is going on real time and then to review it without the car running.
Sunpro has something that interfaces with the car and has playback. Looks similar to an old school Tech 1. It's pretty good- I use those for my OBD II cars, but something laptop based would be better and more mobile.
More food for thought...