Greetings to all, as stated new to forum and Honda’s in addition to diy mechanical work. I bought my daughter a 94 Del sol with a blown motor as a first car. Have a Honda head friend and we have done much work on car together. Have 17,000 miles since installing new motor. Currently we are have a head scratcher of a problem. My iacv will not turn off. When turning car off the iacv continues to make humming noise as though it is engaged. It does not stop humming and will eventually drain battery. So I’ve been disconnecting meg on battery. I also think it stays engaged while driving causing car to repeatedly die. Sometimes it dies immediately other times it runs fine for for a while. Getting codes 20, 10, and 6. Car has the 1.6 d16z6 vtec. Any and all help would be greatly appreciated. Thanks