Results 1 to 1 of 1

Thread: Possible O2 problem

  1. #1
    Tuner Twitch's Avatar
    Join Date
    May 2009
    Location
    NYC
    Posts
    54

    Possible O2 problem

    I usually find what I need doing a search but I'm having no luck this time. So I thought someone can look at this short scan. I hope I posted the scan and config correctly. I don't have the current tune on this computer but this is a new problem so I'm hoping it's not a tuning issue.

    This started a couple weeks ago, is very random and only 4 or 5 times. It seems to happen at start-up and goes away whenever it feels like it.
    Basically the car will idle a bit rough. It will cruise ok with the AFR pretty normal but fuel trims on both banks are +25 and higher. If I give it gas too quickly it boggs pretty bad But I can get the revs up slowly and get to highway speed.

    As you can see in the scan the O2's aren't switching when it happens. I'm not sure if the O2's are the problem or if something else is causing them to act up.
    I plan on checking fuel pressure but since this is infrequent and I can't duplicate the issue, it may be a while before I can get it done.

    Thanks in advance
    Tony
    Attached Files Attached Files
    05 CTS-V l LS6 l Maggie l Magnaflow Cat-back l Meth l 439rwhp/414rwtq