Scan Master #'s?

[1buick]

When my 87gn is at idle my scan master #'s fluctuate from the 100's to 800's. Is this normal?

 

[notacarlo]

I assume you are talking about the 02 milivolts? Yes, that is normal. Pay attention to that number at WOT at the top of third though.

 

[1buick]

Is it ok for the scan master to go lean and then richen up after a few seconds.

 

[turbojd]

O2 #'s will fluctuate around alot, post your all your scanmaster #'s with the car warm and idling. We will be able to get a better read of things by your scanmaster #'s.

 

[WS6]

When my 87gn is at idle my scan master #'s fluctuate from the 100's to 800's. Is this normal?

What chip are you running?