CEL On - Error Codes

Discussion in '3rd Gen - 2007 - 2017' started by Jeff T, Nov 5, 2019.

  1. Jeff T

    Jeff T Member

    Age:
    63
    Posts:
    15
    Likes Received:
    2
    Joined:
    Nov 28, 2018
    Location:
    Chicagoland
    I was out the other day in a light mist d punched it to get around someone. Rear tires broke loose and spun, I didn't let off.

    CEL came on and the truck ran extremely rough. Drove about a 1/2 mile to our hotel and parked.

    Next morning everything was back to normal.

    Two days later the CEL comes on, here are the codes:

    P0151 - Oxygen sensor Circuit low voltage bank 2 sensor 1
    P219B - Bank 2 air fuel ratio imbalance
    P0300 - Random multiple misfire detected
    P0304 - Cylinder 4 misfire
    P0305 - Cylinder 5 misfire
    P0306 - Cylinder 6 misfire

    Looks like the computer didn't like me stomping on it! I'm going to reset and keep an eye on things.

    Safe assumption??

    BTW - The remote start is sporadic. Sometimes it starts, sometimes the horn honks. Any ideas??

    Thanks!!
     
  2. JExpedition07

    JExpedition07 Ultimate Member Supporting Member

    Posts:
    4,546
    Likes Received:
    1,816
    Joined:
    Mar 30, 2017
    Location:
    New York
    What year?
     
  3. 762mm

    762mm Full Access Members

    Age:
    39
    Posts:
    322
    Likes Received:
    164
    Joined:
    Aug 28, 2019
    Location:
    Quebec, Canada
    My assumption is that you have a vacuum leak somewhere, probably caused by the sudden acceleration / RPM boost and a hose popping off. This would explain sudden multiple cylinder misfires and air-fuel mix imbalance.

    Check all the vacuum lines under the hood (hissing sounds, etc.) and reconnect if any are loose / disconnected. You can also check for leaks with smoke:

     
    JExpedition07 likes this.
  4. Jeff T

    Jeff T Member

    Age:
    63
    Posts:
    15
    Likes Received:
    2
    Joined:
    Nov 28, 2018
    Location:
    Chicagoland
    2017
     
  5. JExpedition07

    JExpedition07 Ultimate Member Supporting Member

    Posts:
    4,546
    Likes Received:
    1,816
    Joined:
    Mar 30, 2017
    Location:
    New York
    Ok, as 762mm alluded to a P219B code is often accompanied by a vacuum leak. First things first check all the vacuum hoses under the hood and make sure nothing is cracked/disconnected. If you don’t find anything obvious the smoke test isn’t a bad idea....
     
    762mm likes this.
  6. Jeff T

    Jeff T Member

    Age:
    63
    Posts:
    15
    Likes Received:
    2
    Joined:
    Nov 28, 2018
    Location:
    Chicagoland
    Thanks!!! Waiting for daylight now!!
     
  7. Jeff T

    Jeff T Member

    Age:
    63
    Posts:
    15
    Likes Received:
    2
    Joined:
    Nov 28, 2018
    Location:
    Chicagoland
    Update: Had the codes cleared. About a thousand miles later only the oxygen sensor code has returned.

    Headed to the dealer in the AM.
     
  8. Grover6

    Grover6 Active Member

    Age:
    45
    Posts:
    34
    Likes Received:
    7
    Joined:
    Jan 21, 2019
    Location:
    Calgary
    that explains your remote start issue. I have had that before. The O2 sensor goes and it won't allow the remote start function. Just honks.
     
  9. Jeff T

    Jeff T Member

    Age:
    63
    Posts:
    15
    Likes Received:
    2
    Joined:
    Nov 28, 2018
    Location:
    Chicagoland
    Per the dealer, the Check Engine Light disables the remote start...
     

Share This Page