Originally Posted by zerodameaon

The locking clip is just a U shaped piece of metal keeping the connector from sliding off. Look very closely at the picture above with the IACV-FICD, you will see the small piece of metal, if you stick a flat head under it and pull up it will come off, just don't loose it as it tends to take flight.

Also new IACV? If its a IACV that is identical(same part number) off a newer car you can just splice in the connector if its diffrent. If its something completely different you cannot retrofit it.