Removing main ECU connector - HELP

[hopgop1]

I'm trying to unplug the big fat connector from the ECU, I've pulled the little locking tab thingy out (pictured), but I'm not sure how I now get the connector off? I've tried pulling, but it doesn't seem to be budging, I'm conscious of damaging the wiring if I yank too hard.
Does the plastic cover above the connectors come off, or is that what I should be pulling?
Am I missing something, or do I just have to send it and pull as hard as possible? Any help appreciated!

 

[Simon Squire]

I'm trying to unplug the big fat connector from the ECU, I've pulled the little locking tab thingy out (pictured), but I'm not sure how I now get the connector off? I've tried pulling, but it doesn't seem to be budging, I'm conscious of damaging the wiring if I yank too hard.
Does the plastic cover above the connectors come off, or is that what I should be pulling?
Am I missing something, or do I just have to send it and pull as hard as possible? Any help appreciated!
View attachment 1600324

slide the top plastic cover towards the locking tab and the it will lift off very easily.

 

[Steven103]

You haven't pulled the locking tab out far enough. It moves about 3cm in total.

 

[hopgop1]

Cheers lads, just figured it out, locking tab was stuck, pushed it in and out a few times and it came out the full way.
Out with the old, in with the new.