new cat and 02 sensor; old error code

Discussion in 'General Motoring' started by honda_part_jockey, Jul 19, 2006.

  1. honda_part_jockey

    honda_part_jockey Guest

    sounded like rocks loose in catalytic converter on 99 honda accord,
    4-cyl, 4-door dx 5 spd.

    replaced cat with aftermarket can. no more loose rocks.

    problem solved.

    uhh...no.

    a few days later, got a "check engine" light. error light flash code 67
    (P0401): "catalytic converter efficiency low." checked the cat's O2
    sensor. heater resistance was too high.

    replaced the sensor.

    problem solved.

    uhh...no.

    a month later the "check engine light" and error 67 are back.

    what's my next move?
     
    honda_part_jockey, Jul 19, 2006
    #1
  2. honda_part_jockey

    chip Guest



    A P0401 is a code for a restricted egr flow. A p0420 is for the
    CAT. figure out what code you really have and get back to us
     
    chip, Jul 23, 2006
    #2
  3. honda_part_jockey

    honda_part_jockey Guest

    my mistake. the light-flash code was 67, which according to the haynes
    manual is P0420. i wrote the wrong one.
     
    honda_part_jockey, Jul 23, 2006
    #3
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