02's volts

[1nadrag]

I put a new 02 sensor in last night and noticed that when I let off the gas after making a brief run the millivolts drop to 000 for about 5 sec. What is up with this?
Thanks Tom

 

[BADINBLACK6]

I'd like to know the answer to this too. It happens to me once in awhile, but I think I heard that it will do that once in awhile and it's o.k. as long as it doesn't stay there. It probably just read the o2's at a bad time.

 

[bruce]

Originally posted by 1nadrag
I put a new 02 sensor in last night and noticed that when I let off the gas after making a brief run the millivolts drop to 000 for about 5 sec. What is up with this?
Thanks Tom

DFCO.

Decleration fuel cut off.
It's a MPG thing.
Sudden throttle lifts do it. There are some perameters that must be met for it to be enabled.