Input Trigger/Subaru Trigger - VEMS wiki www.vems.hu

InputTrigger/SubaruTrigger (2007-07-04 11:16:35)

Subaru Trigger => See InputTrigger/ShortGapTrigger for config details

Q: Is here some working engine using 6&7 teeth pattern? My basic concern is about sync from 7 teeth cam teeth. MembersPage/GintsK

Older Subarus(L-Series) with ECU controlled ignition have Crank-position [Signal disc] in distributor.

360 little holes in outer ring presents Crank-angle in one degree/Percent precision (For engine speed signal.)

Four long holes, are crank angle signal. One of the holes is longer, indicating (possibly) Cyl 1. (Working on it!!)

6-7 setup (6 crank teeth + 7 cam teeth) - see MembersPage/MichaelRichards/Projects/SubaruECU. Seen on North American Legacy Turbo and the 2.5L SOHC plants (definitely on 99-01 plants, maybe on 02-03 plants and possibly earlier)

36-2-2-2 setup (36 crank teeth, missing 2 teeth BTDC Cyl 1, and 2 teeth twice before BTDC Cyl 3, exact angle needs TBD). Seen on North American 2.2L SOHC plants (99-01 model using 2 teeth cam wheel) as well as other 2.0L/2.5L Turbo plants (most using 4-1 cam wheel)

Hopefully i can use my distributor signals with genboard too!

Q: Any ideas how to make it work with genboar v3.0??

A: the 360-3 tooth crankwheel is definitely more than what current firmware can handle (and possibly above what is practical with the chosen inputcapture - but not HW-counting capable - IC1 channel). I suggest to help out in the InputTrigger/AudiTrigger

firmware, that board was designed for this.

Newer subarus (Legacy mark1) have triggers like these:

[Cam Sensor]

[Crank Sensor]

Here is a photo of the cam wheel:

Here is one of the crank trigger...