[s-cars] Oxygen Sensor Electrical Connector - Won't Budge

[JTom8869 at aol.com]

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Replacing O2 sensor today and having trouble removing the electrical
connector against the firewall that has the 2 white wires. Any tips on
freeing this sucker?
Looks like this may be first time this sensor has been replaced.
Thanks is advance.
Weak fingers Tomlinson.
93 S4