ShadowLightCSU

iTrader: (1)

My front O2 sensors are throwing codes every once and a while, however I reset my computer and the stumbling problems I had seem to be gone. I am wondering, should I just swap in my back O2s to be on the safe side? Or is there a criteria for getting new O2s? Is there a way to tell if O2s are functioning 100%?

Cobraeater

You need to take you car to a shop (have them use Autotap or a Tech2) and see what codes come up. That's the only real way to see what's going on.

ShadowLightCSU

iTrader: (1)

Already done that, and like I said it is intermittent.

Cobraeater

Then it would be a good idea to put new o2's in. You can switch the back ones to the front, but then you will get the SES light for not having o2's on the back.

ShadowLightCSU

iTrader: (1)

O2 simms on there, so they are just sitting in a box. What I am worried about, is the rears will do the same thing, because they've been through two header swaps like the fronts have. Are O2s something that either work or don't work, or can they be working badly and be throwing my tune off?

Cobraeater

O2 sensors will either work or not I don't think there is a middle ground with those.

ShadowLightCSU

iTrader: (1)

So hypothetically, if after resetting my computer and I go through a tank of gas without throwing them again, I'm okay?

Cobraeater

If you don't get a light again I wouldn't worry about it.