I'm willing to build a DYI Gear Indicator...
For that I need to know the ratios between ECU pin 6 Speed Sensor signal and ECU pin 47 Tachometer signals. Those signals are also available at cluster pins 5 and 6...
I know that speed sensor output 4 pulses per sprocket rev., because the sensor senses a square nut concentric with sprocket.
I do not know the relationship between crankshaft (ECU pins 13, 30) and Tachometer signal, but I will use this last one. Timing rotor has 22 teeth, therefore Crankshaft Sensor signals might output 22 pulses by revolution, but this signal is differential and pulses do noy have all the same duration. For the Tacho signal, the service manual refers that 133Hz will display 4000 RPM. Well, 4000 RPM is 66.6Hz hence, this signal might be 2 pulses per revolution.
If anyone has already checked those signals, comments are welcome. Thanks. Jose.
For that I need to know the ratios between ECU pin 6 Speed Sensor signal and ECU pin 47 Tachometer signals. Those signals are also available at cluster pins 5 and 6...
I know that speed sensor output 4 pulses per sprocket rev., because the sensor senses a square nut concentric with sprocket.
I do not know the relationship between crankshaft (ECU pins 13, 30) and Tachometer signal, but I will use this last one. Timing rotor has 22 teeth, therefore Crankshaft Sensor signals might output 22 pulses by revolution, but this signal is differential and pulses do noy have all the same duration. For the Tacho signal, the service manual refers that 133Hz will display 4000 RPM. Well, 4000 RPM is 66.6Hz hence, this signal might be 2 pulses per revolution.
If anyone has already checked those signals, comments are welcome. Thanks. Jose.