Quote:
Originally Posted by rwest
Hi Bert,
If you hook an oscilloscope up to the SAW output on your EDIS you should see a 0-5v square wave that changes with RPM. I had the waves, but they were going negative, so still didn’t work. Here’s my photos of the scope- the lines should have been going up not down like they were. I haven’t actually put the scope back on, but my timing light now shows the same advance as the computer says- it didn’t move before.
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Thanks Rutager. I believe in the MS II, the SAW output comes from pin 17 on the main board, but I don't know where it comes from in the MS3 - can you help me on that? As well, are you running coil-on-plug (I am)? I'm trying to get a overview on how you were able to determine you weren't getting an advance. Pardon my ignorance on these electronic ignition systems - I feel like the "iterative run-check plugs-listen for detonation on acceleration-repeat" seems antiquated with the computer sensors, or I am missing something. Thanks again!
Bert