RTH O2 sensor Bank 1 FZJ80 1994 dead (1 Viewer)

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Israel
After crossing a flash flood in the Negev desert because I got stuck in the wrong place during the flood



I need to identify which is bank 1 from the two?? I don't want to open the wrong one and break something in the process. The engine starts ok works and I can drive home, but the idle is not nice. Check engine light is on and I can see that Bank1 sensor is dead on my TOYOCOM OBD1 reader.

More questions
89465-60110 O2 sensor kit is discontinued - what is the best alternative?
I have a problem with the wires and the rig side connectors I understand that replacing the all harness id not an option because it is discounted too. Is there someone that take used a harness and overhaul it?
 
Which one has the long harness and which has the short harness?

Still trying to figure out "#1 location"
See link.

 

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