try as I may I only have a cheep old meter and on a setting of 10 volts dc I got a reading of 3.8 volts over both of the lines one black and the other brown with black stripe, Removed the EHA and turned the allen 1/2 ccw then tryed to reset the mix ran like mud.so back into it and cw 1/4 that gave a great deal of even eng. flow once the mix was reset, but I am still getting the same voltage reading,at the EHA.
Now the lamda reading is at 4.4 to a slow rise or I should say a stedy rise to 5.4 even up and down rampping 68%
2500, was 6 volts at 56% hope I did ok.