Information on the Toyota 4age timing system - distributor driven. These have a potential market for Corolla (AE86 and newer, and MR2)
http://www.autoshop101.com/forms/h23.pdf
Some decent scope traces.
Sounds like a simple setup:
- LM1815 for primary trigger
- LM1815 for secondary trigger
This way we get a similar crank and crank-signal pulses to the processor as the HALL signal of the mazda-BP engine (eg. MembersPage/Fero ) has by default (without LM1815 of course).
Any info about the position of primary trigger falling edge ? If it's >50 crankdegrees BTDC, than it is supported without any firmware modification.