o2 sensors not reading?

Discussion in '96-04 - 2V Specific' started by svt slobra, Jun 26, 2014.

  1. svt slobra

    svt slobra Well-Known Member

    Messages:
    1,522
    Likes Received:
    182
    Joined:
    Jan 17, 2012
    Location:
    ohio like everyone else
    Hi guys!

    Just bought a 99 gt (80k miles). On the ride home, I noticed it had a miss fire under load and the CEL is on. I changed out the coil packs for new Granatelli's and installed all new o2 sensors. After taking the car for a test drive, I noticed the CEL came back on. The codes its throwing area for all 4 of my o2 sensors being bad and an evap leak? .......Anybody ever had a problem like this?
     
  2. coldweatherstang

    coldweatherstang New Member

    Messages:
    18
    Likes Received:
    0
    Joined:
    Jul 21, 2014
    Location:
    Lansing MI
    I currently have a similar problem going on with my 98gt and am trying to track it down. The codes it was throwing are JP and p1011 which are lean codes. But one of the reported fixes are o2 sensors. I'll keep updating I as I research.

    Update: I had a derpa moment with that. The codes are actually p1130 and p1131. After cleaning the MAF running an injection cleaner its still throwing them so I am ordering o2 sensors and will replace.
     
  3. 96blak54

    96blak54 Legend

    Messages:
    7,459
    Likes Received:
    775
    Joined:
    Feb 21, 2011
    Location:
    Ky
    Can you get an obd2 scanner with real time downstream data?
     
  4. shinobmatt

    shinobmatt New Member

    Messages:
    10
    Likes Received:
    0
    Joined:
    Sep 25, 2013
    Location:
    Warr Acres, OK
    the 1 i have has live data stream. but i have MIL eliminators on it so it shows my rear O2's at 99.2%.
     
  5. coldweatherstang

    coldweatherstang New Member

    Messages:
    18
    Likes Received:
    0
    Joined:
    Jul 21, 2014
    Location:
    Lansing MI
    A new bank 1 sensor cleared mine. Have you checked for a vacuum leak yet?