MoTeC Global Forum

I am using individual Low Side Injector signals to trigger both Increase and Decrease MAC valves with CO2 control. They share a 12 volt constant power.

I'm not sure if this is normal, but it doesn't look normal to me.

With engine idling, the decrease valve will show 12 volts but I confirmed that the valve is actually closed.
The increase valve shows 0 volts.

I don't want to test the boost strategy until I know this is okay.

Are you using GPR firmware or a partner package?

SOReilly wrote:Are you using GPR firmware or a partner package?

I use the JRR firmware, which I believe is a modified version of the GPR firmware that John tweaks how he sees best fit.

The reported output voltage will be 12V if the actuator is off.

Unless the low side driver is allowing a path to ground it's expected to see the supply voltage measured.