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New ISSUE CEL 850

I'm having codes p0136 and p0141 (I'm recalling them from memory).

I replaced the plug for one of the O2 sensors (the car side not the O2 side).

When I was doing this, I noticed that sheathing of one of the wires (the largest of the 4 wires, a green I believe) looked a little melted (long story short I ripped the plug apart by accident).

After replacing the plug, I keep getting a CEL show up, indicating the rear O2 sensor is the issue.

When I replaced the plug, I use heat shrink around the largest wire on the harness (that's the one that looked melted a bit).

Could that heat shrink on the largest wire be causing the issue?
--
1985 245. 246K Gone..but not forgotten. Sold in 2013, found 2018! Still running on the road. Of course. 1993 Volvo 850 soon to be gone






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New Stiff steering issue (97 850 (190k)) [850]
posted by  Shaughnessy  on Tue May 18 13:21 CST 2021 >


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