LPG section
What I mean is, you've got 8 injector outputs, but need 12 injectors (6 LPG and 6 petrol, assuming both are run sequentially). Possible solution is to use 6 outputs in parallel, but wire each injector set through a relay to choose between LPG and Petrol. That way you "just" change
- injector PWM
- injector-opening parameters
- most maps should NOT need adjusting
- VE does not change when switching fuel
- lambda : might make sense to change (probably not for gasoline-LPG, but certainly for gasoline-alcohol)
- Maybe higher ignadv with LPG? knock_default_retard should be sufficient for that
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