fredsub Posted March 5, 2005 Share Posted March 5, 2005 I haven't got a subaru ECU, and so trying to work out how the turbo dizy works; This one has reluctor sensor and vac adv unit; the 4 wires: yellow blk/white blk/yellow blk/red so far I think yellow - wire to (-) side of coil (ie "points!") blk/white - 12V Batt I hooked up the dizy to a electric motor; connected the Yellow thru a 100ohm resistor to +12V. I get a 10V square wave signal on the Yellow and a in phase 1Volt square wave on blk/red; I suppose blk/yellow and blk/red go to a knock control, but does anyone have any insight as to how the knock control does its job? what signaling it does? what signal should be on that blk/yellow? I don't have a knock control unit to test it myself. mighty thanks to anyone who has this sort of teci info on this dizy Quote Link to comment Share on other sites More sharing options...
GLCraig Posted March 5, 2005 Share Posted March 5, 2005 If I'm reading my diagram right, Yellow ==> coil - Blk/wht==> coil + blk/red==> Knock control unit Blk/yel==> knock control unit Quote Link to comment Share on other sites More sharing options...
naru Posted March 5, 2005 Share Posted March 5, 2005 I suppose blk/yellow and blk/red go to a knock control, but does anyone have any insight as to how the knock control does its job? what signaling it does? what signal should be on that blk/yellow? I don't have a knock control unit to test it myself. mighty thanks to anyone who has this sort of teci info on this dizy BY is the phase control signal. BR is the ignition timing signal.Both connect to the KCU. Under normal running KCU, provides 3.1V on BY for nominal timing. Under detonation,KCU increases BY voltage in steps up to 5.8V to provide up to 10 degrees of ignition retard as long as RPM is less than 4850.No retard function above 4850 RPM. When the KCU gets a high altitude signal,it will advance timing 5 degrees(by decreasing BY to 1.7 volts I think). Quote Link to comment Share on other sites More sharing options...
fredsub Posted March 5, 2005 Author Share Posted March 5, 2005 wow what a forum this is, that was my first post and I get an answer to this sort of question!! many thanks naru, thats just what i needed to know Quote Link to comment Share on other sites More sharing options...
ThreeEyedBandit Posted March 5, 2005 Share Posted March 5, 2005 If it has a Varible Reluctor it is not a turbo disty, turbos had optical disty's so the computer could 'see' where the crankshaft is in its rotation. Matt Quote Link to comment Share on other sites More sharing options...
GLCraig Posted March 5, 2005 Share Posted March 5, 2005 If it has a Varible Reluctor it is not a turbo disty, turbos had optical disty's so the computer could 'see' where the crankshaft is in its rotation. Matt That's only on later turbos with the hotwire MAF. Quote Link to comment Share on other sites More sharing options...
ThreeEyedBandit Posted March 6, 2005 Share Posted March 6, 2005 Okie dokie didnt know on the eariler ones. Matt Quote Link to comment Share on other sites More sharing options...
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