Cool on that clip ill have to see if i can get mine out easier now.
The PCV clip was a bear for me too. Another stupid ide by ford/mazda IMO
What i did was un bolt the plate this made it easier for me to get a better look at how its working and get jewler tools on it.
What i wound up doing was to use an exacto knife and i cut a little slot under the tabs. Right in the center, making it a "controled break" this way it will give where i want it to not where it decides to break usually making it not usable after that.
I then tried turning the ring a little and with the ring turned i shaved the tab on the part the ring fits over. I shaved the tab on one side on both tabs so when i rotated the ring i could kinda twist it off.
Hope this makes sence?
DX3?.. huh?.. well ZX3 = Zetec the 05-07 has a Duratec so D