1. Welcome to TRD Forums! A community for Toyota, Lexus, and Scion Enthusiasts. To enjoy all the benefits of the site, we invite you to signup.

Engine the infamous 420

Discussion in 'Powertrain' started by felixrolla, 2005年06月14日.

  1. Offline

    felixrolla Guest

    Message Count:
    0
    ライク受信:
    0
    賞:
    0
    the infamous 420

    how have people dealt with code po420? I'm getting it all of the sudden
    felixrolla, 2005年06月14日
    #1
  2. Offline

    ChristianVA New Member

    Message Count:
    411
    ライク受信:
    0
    賞:
    0
    CHeck you o2 sensors if they are fine and runing cat is clogged up.
    ChristianVA, 2005年06月14日
    #2
  3. Offline

    Vamp Gunmetal 2001 Corolla S

    Message Count:
    1,756
    ライク受信:
    21
    賞:
    588
    Location:
    Rosedale, MD
    Vehicles:
    Gunmetal Grey 2001 Corolla S
    Time for a new cat.
    Vamp, 2005年06月14日
    #3
  4. Offline

    felixrolla Guest

    Message Count:
    0
    ライク受信:
    0
    賞:
    0
    this isn't the one related to the MAF? ughhhh. Could this be related to my 03 engine?
    felixrolla, 2005年06月14日
    #4
  5. Offline

    TRD Rolla New Member

    Message Count:
    45
    ライク受信:
    0
    賞:
    0
    Location:
    ireland
    po420? please explain what it is?
    TRD Rolla, 2005年06月15日
    #5
  6. Offline

    ChristianVA New Member

    Message Count:
    411
    ライク受信:
    0
    賞:
    0
    a catalytic converter malfunctioning.
    ChristianVA, 2005年06月19日
    #6
  7. Offline

    felixrolla Guest

    Message Count:
    0
    ライク受信:
    0
    賞:
    0
    well, I think that during one of my cleanings, I bent the MAF. So I changed it, and no CEL so far (couple days).
    felixrolla, 2005年06月19日
    #7
  8. Offline

    felixrolla Guest

    Message Count:
    0
    ライク受信:
    0
    賞:
    0
    ugghh

    it's back... p0420. does anyone use one of those eliminator devices?
    felixrolla, 2005年06月27日
    #8
  9. Offline

    Turbo1zz New Member

    Message Count:
    166
    ライク受信:
    0
    賞:
    0
    You're getting this code because the ECU is reading an abnormal voltage from the post cat o2 sensor. This is most likely from a clogged cat or a faulty o2 sensor.

    Replace the cat and have the post cat o2 sensor checked out. This will eliminate the CEL from coming back again.
    Turbo1zz, 2005年06月27日
    #9
  10. Offline

    felixrolla Guest

    Message Count:
    0
    ライク受信:
    0
    賞:
    0
    so... there is no way that it could be the fact that the engine is now 03? I was thinking maybe i could try to do the TSB ECU flash, since my ECU serial # falls into the category of flashible ECUs....
    felixrolla, 2005年06月28日
    #10

TRDの愛を広める