Fixed duty-cycle of 70% on a CA car??

[irieite]

I finally decided to buy one of those much balyhooed Sears DMMs and check the duty-cycle on my '91 190e 2.3 California model only to be surprised to see that the KOEO reading at pin 3 of the X11 connector was at 69.6%, which would be inline with a 49 state car.

I'm quite certain this is a CA car as it has the yellow emmisions decal under the hood and the VIN shows it is a CA car as well, along with the X92 connector.

I'm running about 60% duty cycle at the moment in closed-loop, but I have to wonder; Is there something wrong here??