Originally Posted By 1fastaspen
Okay I got an aem a/f set up and I can't get this this to read at an idol it just says it's lean and shows no numbers if I bring it up around 1500 rpm it's at 17-18 I got a good ground and a full 12 volt power supply anyone else have this problem and if so what was the cure and yes this was a brand new in the box unit


I had the same issue but once I adjusted the idle mixture screws it came right in. Did you try adjusted the idle mixture screws?

67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......