DIYEFI.org Forum

I started this as a quick hack, but because we can run an infinite number of decoders in FreeEMS, I may as well leave it in and maintain it along with the others.

As of tonight, it works, but like the 4and1 decoder, it requires more work.

• gain and lose combustion sync based on timing between events, always do this, set sync found on var
• save state and use flags to only check and do calcs if good
• verify the angles that I used for high/low
• add good documentation to the source and upload any logs/information/pics
• Make it configurable which edge the sampling and RPM are done on (not both) (same mod for mitsi 4and1 decoder) (always do it on second event to start quicker)
• Make it configurable to do batch injection too and/or not do ignition

I'd like to get the first 3 done tomorrow and a bunch of good debug pumped out of it, along with wiring the box into the car better.

Not to do with the decoder, but related:

• Make sure the engine offset angle is correct
• Look at correct dwell levels for this setup.
• Think about implementing dwell limiting via existing curve
• Think about refactoring to 1/10 degree units
• Think about splitting out code chunks for reuse across decoders (ADC, RPM, setup, noise checking
• Investigate the 2.5degree timing step visible on the light (could be on/off angle wrongness and sched jumping between teeth)
• Consider trying to use a jap coil instead of the tin can, and ditch the ballast resistor too.

If anyone knows what else these exact units were used in, please post here!

Fred.