![Image](http://i137.photobucket.com/albums/q209/choyr/LHD_ANALOG_TO_DIGITAL.jpg)
i also uploaded the video to share what i have done.
http://youtu.be/OWGWSznHaRM
as you see, the tester reads Hz and it increases if i rev the engine, but the rpm doesn't move. also, notice the temperature is not changing, but i checked the resistance and it varies depending on the temp.
it's hard to determine it is hardware fault, i have no spare to check, but when i use the analog cluster, it works. looks like the IC has defect? or I am missing something +12v?
4age 20v / ke70