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454 Running Rich after tranny

Discussion in 'Chevy Trucks' started by Clean & Green, Jul 22, 2005.

  1. Clean & Green

    Clean & Green Junior Member
    Messages: 14

    I have a k3500 454 7.4l and had the tranny rebuilt last week. After I got it back it was running rich and i found that the o2 sensor was broken... so I had them fix it... the truck was running really rough before the o2 sensor fix but now it is still running a little rough... any ideas? or is it just the computer slowly catching up to the new sensor?
     
  2. raptorman03

    raptorman03 Senior Member
    Messages: 333

    take your power cable off your batery for 15 min. and see if that helps