My 2006 XK8 is stuck in Code P1000.
I had a battery issue this summer that required that I disconnect and recharge the battery. (Thanks to the forum I now lock the doors and set the alarm whenever I leave the car). Since the car runs fine I did not give it a second thought until now that I need a smog check for registration. I do occasionally get a brief stumble with light throttle just off idle and the fuel trims bounce around a bit but are within an acceptable range and do not trigger a DTC

The readiness check indicates that the CCM is incomplete. I checked all the values on the OBD and everything appears to be normal as before. I also found an O2 Sensor test ($81 and $82) that I performed on the downstream sensors. This appears to be a short interval in lieu of continuous test where I can compare both Min and Max values. I have run this test several times and virtually all results fall within the acceptable range except Min value for Sensor 1. That Min Value tends to be around .03 vs .04.

Could this be the issue with completing the readiness test and returning to P1111? Does this indicate an issue with the sensor that requires replacement or are these actual reading indicating an air/fuel ratio problem. Forum members indicate that staying with Denso sensors is best so if replacement is necessary do I need to replace these in pairs?
Any help is appreciated!
Coscat

 

The P1000 of itself won't cause a smog fail. (But no-one wants a car stuck at P1000.)

If you're allowed an unset monitor (as many states allow) you may be able to pass - and afterwards try to find the issue.