Hi folks. This is for OBD1 Motronic on an ABA engine swap but the question
might apply to the WBX O2 and ECU.

I was cutting back two corroded wires, hoping to find clean strands but
they're still corroded at 6" from the ECU connector. I don't have the means
to remove and replace them. One #16 wire connects from ECU to the O2 wire
shield then runs to ground (specifically the "Ground connection (shielding)
in engine compartment wiring harness"). The other wire, a #20, connects the
ECU to the same ground point. I don't know its' purpose.

I assume these wires carry very little current and voltage. If I connect
new wire to these, is the corrosion along such a short length of wire a
factor to worry about?

An image showing corroded wire strands. Yes that dust is corrosion that
fell off the wire when it was disturbed:

https://photos.app.goo.gl/wdVAEdD3xH5lAwzl1

TIA,

Neil.

--
Neil n

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