How to unplug this connector? Tried everything that came to mind.

 It has a latch on one side, all attempts were done while pressing it down fully.

Connector was cleaned all around, then heated up a bit (warm to touch) using a hairdrier. It won't move no matter how hard I pull it side to side etc. I tried to insert a very small screwdriver on the long sides to push downwards but still no go. Tried to grab it with small pliers, won't move.
 The connector has a very tight fit, so if I try to spray WD40 inside it will make a mess and nothing else.

 Any ideas? The photo is taken before cleaning it up etc. 

Not sure but I thought the lug on the bottom right of your photo had to be pushed in towards the connector and then plug would pull apart. Usually pretty tight though.

Push in the direction of my poorly draw arrow while pulling the connector apart I think. 

You must clean off all that muck and that includes the recess where the latch sits. DO NOT PULL THE PLUG BY THE WIRES. To do so will likely damage the connectors. When thoroughly clean wobble the plug and the socket to break the bond. A good spray with WD40 will usually help. The clip usually will need pushing in. Have a good look at it, if necessary use a good light and a magnifying glass. If the clip wont move, there is still muck jamming it. I would suggest a smear of vaseline on the pins and sockets, but they must be clean before you do so.

Roger

wrote:

 It has a latch on one side, all attempts were done while pressing it down fully.
 

 Thanks guys, but as I said in the OP this isn't a problem of not pressing down the latch/lug situated on the side of the connector. All the attempts were done while pressing it down fully.

Was hoping there may be some clever way to pull it out without breaking it.

Looking at it I would say that the small red part is potentially some kind of interlocking device that needs to be lifted out of the connector first, it's probably captive and has an open and close position. Do you know what circuit it is on/location on the car?

Thanks for the reply. Unfortunately the red thing is just the gasket, I suppose the fact that it protrudes out is a design feature allowing it to stay put inside the "mother" side of the connector when it is unplugged.

The connector is on the harness going to the gas tank. If you have any idea please share, I lost at least two hours trying to just unplug this damn thing.

Does this help? Watch full screen on Youtube for clarity of the picture

Thanks a lot for taking the time to make the video.

I'll have to wait until tomorrow (it's raining bad now and the Jimny is outside) but I must confess I missed the slot where you inserted the screwdriver, despite cleaning the connector really well.
Hopefully mine has it also and I just didn't noticed it.

I'll check tomorrow and report back.

No problem

I thought it better to video the real thing rather than get the wrong connector and therefore describe the wrong method of release. There are similar looking connectors but the release action is different.

Note that I am twisting the screwdriver not using it as a lever

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l had two of these on my motorcycle and to separate them you have to put a small screwdriver under the red thing on top and lever it out, which will release the connector.

 

 Sorry for the late reply, the weather was horrible here, just today managed to get under the car again. This is how my connector looks now, no amount of twisting with the screwdriver made it open the slightest bit.
 
If it's not too much trouble, could you please take a clear photo of the inner side of the "mother" part of the plug? I'm trying to figure out how to make a lever and apply some force without breaking the damn thing. Clearly it was never opened since the car left the factory in 1998...
 Thanks a lot!