I made a few posts on the tails of some other threads. Now that the dealer has addressed the problem, I wanted to get some feedback from y'all.
Yesterday, I had a P0133 CEL. Today, the dealer replaced the O2 sensor. Here's what the service order says:
"Found o2 sensor covered in soot. Found ECM calibration update relating to dtc p0133 per bulletin #16-na-099"
"OP code 2881008 not on file"
The part number they installed was 12644786
"Diag: scanned vehicle and found dtc p0133. Inspected O2 sensor for possible loose connection at connector, but found OK. Found sensor properly torqued. Searched and found o2 sensor covered in soot causing dtc to set.
Cure: reprogrammed ecm to re-set fuel trim values."
Anybody know what bulletin #16-na-099 actually addresses? How about the resetting the trim values? Does that mean they flashed in some kind of permanent update?
While I'm happy they replaced the sensor (which doesn't appear to have been faulty, only dirty), I'm left to wonder if this will recur.
After I got the car back, I did a bit of an Italian Tune-up on the way down to the freeway. I then set the cruise at 82-85 (sometimes 90mph) mph and ran a good 100 miles out and back.
I remain impressed at how easily it pulls long grades while returning ridiculously good mileage.
Yesterday, I had a P0133 CEL. Today, the dealer replaced the O2 sensor. Here's what the service order says:
"Found o2 sensor covered in soot. Found ECM calibration update relating to dtc p0133 per bulletin #16-na-099"
"OP code 2881008 not on file"
The part number they installed was 12644786
"Diag: scanned vehicle and found dtc p0133. Inspected O2 sensor for possible loose connection at connector, but found OK. Found sensor properly torqued. Searched and found o2 sensor covered in soot causing dtc to set.
Cure: reprogrammed ecm to re-set fuel trim values."
Anybody know what bulletin #16-na-099 actually addresses? How about the resetting the trim values? Does that mean they flashed in some kind of permanent update?
While I'm happy they replaced the sensor (which doesn't appear to have been faulty, only dirty), I'm left to wonder if this will recur.
After I got the car back, I did a bit of an Italian Tune-up on the way down to the freeway. I then set the cruise at 82-85 (sometimes 90mph) mph and ran a good 100 miles out and back.
I remain impressed at how easily it pulls long grades while returning ridiculously good mileage.