Okay, guys, my SES light paid me a visit recently and according to the code reader (I really need to buy one) at Auto Zone, it's a P0135 code in "Bank 1; Sensor 1", with their print out recommendation from "ASE Master Technicians" that it is likely an ECM issue. Sales pitch I wonder?
Well, before I go replacing a more expensive ECM, a cursory review on this code, both here and elsewhere, brings to light that these sensors should be replaced after so many miles (60K?). I haven't done that and it is approaching 160,000 miles. ...It is running rougher, particularly when cold, so something is definitely going on. I don't minding replacing the sensor if they need to be.
* Looking from the top, the sensor looks within reach, but I can't see where the harness leads to. Will it give me a problem? Is it more difficult, say, than replacing the #4 and #8 spark plug, which I did a couple of months ago? Number 8 was the proverbial bitch.
*Any sensor brands I should stay away from?
* Also, will the 7/8" specialty socket (similar to those pictured) sold by Harbor Freight work here? It's cheap. ...I've got a metric crows foot set also.
* Just soak the sensor with some PB Blaster, wait a while, remove, and that's it, right? No recalibration anywhere, etc?
... By the way, not adept at multi-meters so I don't want to bother with one right now.
After this is fixed, I'll tackle the real problem - How to rid the AC system of its musty moldy smell.