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Thread: o2 sensors

  1. #1
    Join Date
    Jan 2019
    Location
    south amboy new jersey us
    Posts
    1
    My Cars
    bmw 09 328ix

    o2 sensors

    Hello everyone!!

    SO, I haven't driven my bmw 328ix 09 since December because my dog had to get a splenectomy in Virginia and when i got back it said my o2 sensors were bad and that wa s causing my car issues. We replaced the o2 sensors, it had a hard time starting up so we plugged my diesel truck up to it because maybe the battery was dead. It would start and then it would idle for 2 seconds then turn on. we finally got it to turn on and we let it charge for 40 minutes or so hooked up. we took it for a short drive it was fine, i turned it off and turned it right back on. it was still fine. After letting it sit for a few hours and trying to take it for a drive it would idle then turn right off. i got it to turn on and took it for a trip and it was bucking and my service engine light soon came on. What could it be?? we cleared out the codes, let it run it was fine. Im thinking it could be because it wasnt charged enough or that since it was jacked up on my gas tank side that not enough fuel is getting to it? I had 86 miles. Please help me

  2. #2
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,459
    My Cars
    36 Cylinders
    Quote Originally Posted by rosewood97 View Post
    service engine light soon came on. What could it be??
    Quote Originally Posted by rosewood97 View Post
    we cleared out the codes
    You cleared out some of the most valuable information regarding the problem..





    Quote Originally Posted by rosewood97 View Post
    it said my o2 sensors were bad
    What said your O2 sensors were bad? Did you save any error codes?




    You need a proper diagnosis with tools that can read BMW manufacturer codes, and then a few tests done on the car to find out the cause. Among these a smoke test to find vacuum leaks in the intake.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  3. #3
    Join Date
    Jan 2016
    Location
    Ca
    Posts
    6,981
    My Cars
    2001 525it
    You need to start dx with a fully charged good condition battery

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