Autometer's afr guage
 

I wanted to start this thread to see if anyone else gets these wierd readings on their afr guage. Here are some examples:

1) With the ac on it runs leaner.
2) With the lights on it runs leaner.
3) If you slam the door the thing fluctuates a lot and then settles down.

Anyone notice anything wierd. Any ideas on what to do.

Thanks.