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Got a check engine light, plugged in to OBD, got 4 different codes all pointing to the upstream O2 Lambda sensor. Found a good source of info on how to take 443 pcs off to access the sensor, but nothing on how to get the connector apart that plugs the sensor cable into the computer harness. This is what I found:

https://www.newtis.info/tisv2/a/en/...ustment-oxygen-sensor/1VncNI4osi#tool-0495805

which is excellent detail but the connector separation they show is different from mine.

Sure don't want to break it. There's a grey plastic tab that apparently needs to be pulled out about 1/4", but that doesn't seem to release the 2 halves of the connection. Everything else about the work is straightforward enough except the connector. Maybe I'm just not pulling hard enough. Has anyone done this before and know the secret?
 
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