Subaru JDM/Euro EJ207
Subaru Impreza STI JDM/EURO 2001-2005 (265-280)standard
pink topfeed injectors 550cc
Cop ignition coils firing order 1-3-2-4
the engine is a boxer engine, there for there is right and left
cyl 1+3 is right side
cyl 2+4 is left side
1:Crank trigger Vr (36-2-2-2)
2:Cam trigger Vr left cam(2pulse)none moving
This is the trigger setup to get the engine running sekventiel
3:Vvti intake cam left side Vr sensor (boxer)4 spots/90degrees moves when avcs is controlled
- any idea at which primtrig tooth does it cross the 0V line (negative-going edge) ?
4:Vvti intake cam right side Vr sensor (boxer)4 spots/90degrees moves when avcs is controlled
- any idea at which primtrig tooth does it cross the 0V line (negative-going edge) ?
Summary:
- Triggers 3 and 4 seem to be unsuitable for secondary trigger camsync, (because they are indistiguishable in both crankshaft rotations - unlike the sane implementations in BMW, Honda, Suzuki, Ford, ...).
- The cam sensor is good for secondary trigger camsync, but not moving, so useless for camshaft-angle control
- in other words "the good trigger doesn't move with camshaft actuation, the moving ones are not good pattern for syncing".
if I understand right, apparent Options
- control only the left (or right) intake cam
- wasted spark (so camsync is not essential), than Trigger 3 and 4 could be used: a bit unusual, needs testing.
- grind 1-1 tooth from Trigger3 and Trigger4 to make the 2 crankrots distinguishable
- Use Trigger3 for third trigger
- and Trigger4 via VR=>HALL adapter, without divider and wheelspeed2 input (without heavy filtering) for 4th trigger. This requires "4th trigger input instead of 2nd wheelspeed" firmware mod. If there is sufficient demand (like 3+ dozens boxes at least), given the unreasonable this might be a good option.
More to come,Skassa