------------------------------------------------------------
         Auto Technology, (sdf.org), 09/07/2018
------------------------------------------------------------
This is my "technology phlog," so this is the correct place 
to post about O2 sensors. They interface with a computer, 
after all

My car was running a little rough the other day. Just a 
"chug" here and there. I recalled that last time this 
happened, there was a tiny PVC elbow joint on top of the 
manifold, which connected to a vacuum hose; the heat 
degraded it once, and simply swapping it out fixed the rough 
running that it was causing. I tried replacing it (it was 
due, and cracking.) Unfortunately, that didn't fix the 
issue.

I dusted off the ODBII reader and plugged it in today. There 
were 5 codes: 2 codes for the Bank 2 Sensor 1 O2 sensor; 2 
codes reporting too lean at Bank 2 and Bank 1; and, 1 code 
for a cyl 2 misfire. I reset them all and drove around a 
bit. Tomorrow morning I'll check the codes again and I'll 
visually inspect the O2 sensor wiring. Oh yes, I also 
checked the fuse that controls the O2 sensors, which was 
fine.

Perhaps tomorrow I'll replace that O2 sensor. I believe 
there are 4 of them down there, but I'll just replace the 
one that is complaining, because I'm lazy.

Part of me wishes there weren't so many computer parts 
controlling everything under my car. Another part of me 
wishes that complex emissions requirements didn't exist, 
since they make everything such a pain. Still another part 
of me is thankful that we have such complex and durable 
machines to get us around affordably. No part of me is 
excited to get dirty under the car tomorrow.