Magnetti Marelli BKL3B on MS3X
Posted: Tue Jan 02, 2018 3:48 am
Magnetti Marelli BKL3B
I'm going to assemble my first Megasquirt III with ms3x this winter or spring but i'm still orientating what parts i can use (learning as i go along). The plan is to drive 2 ignition modules (BKL3B) with the ms3x 0-5v spark outputs to control 2 wasted spark coils, but i have found little information about this module.
After some experimenting it looks like (i might be wrong) that the module fires the coil as soon as the signal pin is grounded and charges the coil as soon as the input is "open". Signal pin itself gives a voltage of around 7v if connected to nothing.
I wonder if other ignition modules work like this? I thought they received a 5 volt signal?
I assume it will work if the 0 volt of the ms3x spark output is grounded but i don’t wont to damage the Megasquirt.
I do have some oscilloscope readings if that helps.
Thanks.
I'm going to assemble my first Megasquirt III with ms3x this winter or spring but i'm still orientating what parts i can use (learning as i go along). The plan is to drive 2 ignition modules (BKL3B) with the ms3x 0-5v spark outputs to control 2 wasted spark coils, but i have found little information about this module.
After some experimenting it looks like (i might be wrong) that the module fires the coil as soon as the signal pin is grounded and charges the coil as soon as the input is "open". Signal pin itself gives a voltage of around 7v if connected to nothing.
I wonder if other ignition modules work like this? I thought they received a 5 volt signal?
I assume it will work if the 0 volt of the ms3x spark output is grounded but i don’t wont to damage the Megasquirt.
I do have some oscilloscope readings if that helps.
Thanks.