06YarisRS's 2ZR-FE Swap 5-Door Hatchback (Automatic Transmission)

[tmontague]

You need to pop up the retaining clip which you did and then you need to take a small needle (I used a sewing needle) and push down on the pin you want out.

I cannot remember which way or really explain it well but I practised for weeks on mine before I actually did the swap.

Once you get it you'll understand. But bottom line is you need to use a small pin to actually push the prong down that also holds the pin in. So there are 2 things that hold the pin in, not just the main retaining clip on the connector