So while I was undergoing the adventure of routing the vacuum hoses under the hood, I also took the opportunity to replace a couple things that have been bothering me. Again, I replaced them not because anything was wrong, but because the car is goddamn 28 years old and who knows when it was last done?
Our pictorial adventure today involves the oxygen sensor (O2 for all the cool kids) and the fuel filter a little later. I'd actually bought the fuel filter some weeks ago with the intent on doing it early. Initially I thought the fuel filter was on the rear side of the carb... I didn't actually locate the fuel inlet +filter until I started this vacuum hose job. I also needed a tool to work the fitting loose. More on that in the next post.
Here's the part I bought. Also, I borrowed an oxygen sensor toolkit from papa O'Reilly. About $30 deposit. I love how cheap parts are for this engine. Sensor = $12-21 depending on your seller. Compare that to my '99 Camry at ~$70. Some vehicles have upstream and downstream, so multiply that by two!
You might need one of these bad boys. You could cheat with a ratchet and a long hollow tube over the handle, but I friggin' love breaker bars. So damn useful. Ratchets can only take so much torque. Breaker bars 4 lyfe.
First, I located the O2 sensor. In this (I assume) stock engine it comes off the exhaust manifold on the passenger side.
The new sensor. It already has thread sealant protected by the plastic cap. Remove it before installing (duh).
Old vs new. Big difference had me worried it wouldn't fit the same way or work correctly.
I didn't show the actual toolkit being used, but it works like an offset ratchet, minus the ratcheting action. You turn it until you can't anymore, removing and reseating the breaker bar/hand ratchet, then snug it up.
Pro tip: Don't forget to connect the actual sensor bit to the wire harness. I used a little dielectric grease inside for some damn reason. Probably doesn't hurt.
Next episode: The fuel filter saga explained.
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