Changed my sensor about a month ago. I got the CEL the next day after changing the sensor, but then did an oil change that day and the CEL has been off since.
I'm guessing my original sensor wasn't bad, and that by doing an oil change, I just put a band-aid on something like failing lifter or cam bearings. Granted I'm happy to have the band-aid for another couple months.
When I changed the oil, it had only been about 4500 miles on Mobil 1 5w-30. I used the same oil and a Delco PF48E filter.
2009 PBM GT
Under the Knife Again
Wiseco Pistons, K1 Rods, Johnson Lifters, BLP Keep Hatin' PDS Cam, Roto-Fab, BLP Ported Intake and Throttle Body, Kooks 1-7/8 long tubes, XForce Varex Catback, ZL1 Converter, Camaro Trans Pan/Filter, GXP Brembos
Breyton GTS-AV Wheels, 6k HIDs, Holden Steering Wheel and Paddle Shifters, Eibach Springs, 35% Tint
Tuned by Day Tuning