To Jadran :
Thank you! I roughly find out the connectors to power the MCU is 9/29(+12V) and 55(ground).
But I can't understand how to connect the rev burner to meters...just connect the 30 and 31 (speed signal) to rev burner, since the power and ground are already provide by MCU itself?@@
To mr.w:
I plan to connect the meter to rev burner directly. But there are 4 connector/screws in the meter, and it looks like a simple aircore meter(a metal tube) without lamp/backlight. Need to figure which one is signal, which one is +12V and which one is ground.
Maybe I should just use the way in another thread, use a multi-meter to test which connectors are link to +12V and ground. But I still can't make sure...
