http://akamai.tehnokratt.net/gems/nscw/nissan2multitooth.c is code that is suppose to convert Nissan Trigger signal to 60-2 multitooth signal. Probably doesnt even compile.
I tested MembersPage/JannoKusman/NissanTrigger (CA) on oscilloscope and results where that sync (1deg) signal amplitute was 2.4-2.6V, but trigger (180deg) signal amplitute was very weak ~3-4mV. MembersPage/PhatBob confirmed that sucested to use 5v pull-up resistor (10K). I also talked with some local electronic gurus and they sucested to use Photodiode Amplifier