I was following up some references today on the MV
ECU and found the
following:
Knock Sensor
Vibrations in engine block will cause the quartz crystal inside
knock sensor to produce a small voltage. The ECU monitors this small
voltage. Ignition timing is retarded 3 degrees initially when
detonation begins to occur. Timing is retarded only in the cylinder
which is detonating.
When detonation stops, ignition timing is advanced in .33 degree
increments until a pre-programmed value is reached. If detonation
continues or reoccurs in a cylinder, ignition timing can be retarded
up to 15 degrees for each cylinder. The difference between any 2
cylinders is limited to 9 degrees.
This is on:
http://www.vanagonparts.com/digifant.html
I was unaware that the MV engine had a knock sensor. Can anyone
elaborate on this? Did different countries get different ECU's?
Les Harris
Syncro_T3_Australia
following:
Knock Sensor
Vibrations in engine block will cause the quartz crystal inside
knock sensor to produce a small voltage. The ECU monitors this small
voltage. Ignition timing is retarded 3 degrees initially when
detonation begins to occur. Timing is retarded only in the cylinder
which is detonating.
When detonation stops, ignition timing is advanced in .33 degree
increments until a pre-programmed value is reached. If detonation
continues or reoccurs in a cylinder, ignition timing can be retarded
up to 15 degrees for each cylinder. The difference between any 2
cylinders is limited to 9 degrees.
This is on:
http://www.vanagonparts.com/digifant.html
I was unaware that the MV engine had a knock sensor. Can anyone
elaborate on this? Did different countries get different ECU's?
Les Harris
Syncro_T3_Australia