Alright, Here's where I'm at.
With the latest code the car stars right up and runs well. Timing is rock solid at the commanded value. I ran the cam through the sweep with the engine idling using the VVT test output. Engine seems to maintain sync the entire time, albeit running really poor to the point where it will stall by the time it gets to well into cam advance. But, that's a lot of overlap so that's expected.
One of the issues I ran into, however, is that the cam angle gauge can't seem to keep a relatively constant reading. With the cam at full retard (zero duty) the reading bounces between 136 degrees and 158 degrees absolute. I managed to make the cam advance slowly by reducing the PWM frequency and setting the duty to 80%. During advancing, about 40 degrees into the sweep, the the cam angle would bounce between 194 and 13. I could not keep the engine running very well beyond 40 degrees, but I think the data I collected should conicide with what I am describing.
I've included the MSQ, datalog, and trigger log of this event. If you need any other data, let me know and I'll do my best to provide what I can.
- MSQ used for vvti sweep test
- (154.16 KiB) Downloaded 32 times
- Log file of vvti sweep test
- (168.97 KiB) Downloaded 89 times
- Composite log of vvti sweep test
- (370.33 KiB) Downloaded 23 times
88 RX-7 TII - MS2 Extra 1.0.2
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88 Volvo 245 - 2JZGTE VVTi powered, MS3X + MSGPIO Mshift controlled