This past weekend I decided to replace my oxygen sensor with my ebay bosch universal. It was a steal at $23 (now $27.50 on Ebay). Though when it first arrived I questioned its provenance as it had a Ford oval etching. Looking closely it’s definately Bosch-the logo said it all. Here it is:

I began by dousing the old sensor with liquid wrench the day before and the morning of. With no special tools in hand, I unplugged the wire and slid under the car. A 22 mm wrench was all I needed. This came out…

Ugly!

So at this point I cut and spliced the existing wire.

The new sensor went back in. I started her up and immediately noticed a better idle.

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