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Hey guys really need some help . Just finished a swap Y7 to Y8 .I changed the ecu and harness as well as rewired to the 2 wire IAC . The vtec is working and the iac is too however once the car warms up the idle drops and a howling comes from the throttle body .If I unplug the IAC the howling stops. I cleaned the IAC same prob . I replaced the IAC with a cleaned used one same problem . I did also in the meantime find out my ported vacume valve was broke by the idiots that pulled this motor . Any thoughts on what to do?