It depends on what year you have. From what I have read, older cars (preOBD) harness did not have the swinging covers. Both time when I wired up the ECU, I just had a pin, soldered it up to the wire that I was running, found the right spot, then just stuck it in. The one that I made a mistake on (location) I just gave it a quick yank, and it came out. Just make sure that they go in all the way.