Two years ago, I did both upstream sensors on Mom's Mystique, so I anticipated the pain for doing the Bank 1 #1 sensor on my car today. It took me 3 1/2 hours, plucking out the wiring to the PCM, severing the pigtail to the sensor, a 22mm wrench and a 5-inch crescent wrench before I got the car back up to snuff. How the heck do the mechanics do it? AND make any money?

BTW: Can an O2 sensor go bad for years before the PCM tumbles on to it? When I fired up the car, the rotten egg smell was all gone, but it been there since early '03... and the CEL had been on for only 2 weeks.

Black/tan early '98 Contour SE Sport; dead-dead-deadsky (gone, split, outta here, afterlife kids) '05 Pontiac Sunfire; 2.2L Ecotec, ATX, well-equipped Mom also has black/tan '98 Mystique LS; V6, ATX, Alpine CD deck