Tachometer (MIU 2)
Tachometer (MIU 2) |
The signal is a square wave which varies periodically between battery positive (Batt+) and 0 V, twice per revolution for 4-cylinder engines and three times per revolution for 6- cylinder engines.
Engine
rpm
45 Hz |
Frequency
(approx.)
|
|
4 cyl.
|
6 cyl.
|
|
Idling
|
30 Hz
|
|
2500 rpm
|
83 Hz
|
125 Hz
|