Trouble code P20EE Catalyst Efficiency Below Threshold

Discussion in 'Volvo Forum' started by Midnightrider909, Nov 7, 2019.

  1. Midnightrider909

    Midnightrider909 Road Train Member

    2,212
    9,249
    Oct 26, 2016
    0
    3150651A-3798-46DF-B3A4-BA0F6781969A.jpeg I had this problem 12,000 miles ago and it was addressed/fixed at the Volvo dealer in Cheyenne Wyoming. Just picked up a load in Southern California and the code went on again so now I’m headed to the phoenix Volvo dealer. I can’t understand why I would have the same issue just 12,000 miles later. Any ideas?
     
  2. Newto Trucking

    Newto Trucking Light Load Member

    298
    167
    Dec 26, 2013
    NE Illinois
    0
    What year is your truck and a mileage??
     
  3. Midnightrider909

    Midnightrider909 Road Train Member

    2,212
    9,249
    Oct 26, 2016
    0
    2018 780 with 192,000 miles. Team truck not idled much. D13 with Ishift.
     
  • Draft saved Draft deleted