I'm using the dx sohc harness, id the iac 3 to 2 wire conversion. My intake air is reading 370 degress??? I extended the wire n had to change the plug bc the sohc was a square one compaired to the round ls one. But car idles at 450-500 rpm. I can adjust it via throttle cable bit I think I shouldn't have to.oh I'm running the b18 ecu. Should I use the sohc ecu since that's the harness I'm using. N I don't have o2 sensors hooked up yet. Can anyone help? I searched and only came up with high idle issues.