Using the MPVI3 and Prolink+ with the ballenger wideband. Connected the AFR500V2 analog output to the red and black on the prolink+. At idle ballenger is showing 3.7 -4.2 V but none of the 4 pins of the prolink+ show a voltage even close to this. Which of the 4 pins of the round connector that screws into the MPVI3 should match the voltage of the red wire input to the prolink+?
