Hey guys, So what my problem is that while im driving occasionly ( doesnt happen very often ) when i go from 2nd or 3rd into neutral, After about a second or two in being in neutral my rpms will drop to about 4 or 500 then jump back up to normal idle. I was looking into this problem someone mentioned that it could be my IAC. I dont know if this is true but any info would help. I drive a 93' obd1 vr6.