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i got burned by seller and smogger

Discussion in 'Technical Chat' started by santa-cruzin, Jun 18, 2009.

  1. Jun 18, 2009 at 11:47 PM
    #1
    santa-cruzin

    santa-cruzin [OP] New Member

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    I bought an 03 tacoma about three weeks ago, it was smogged the day i bought it the next day i filled the gas tank and ten minutes later the check engine light went on. so i figured i didnt screw it on tight enough fast forward 3 weeks i bought a obd reader got codes p0420 and p0136 cat and o2 sensors. i live in california and the truck is at 76k so cant do the emissions warranty. can the smogger be held accountable for this i believe is my question. i have found alot of useful info on here. if you can help its greatly appreciated
     
  2. Jun 18, 2009 at 11:51 PM
    #2
    blackhawke88

    blackhawke88 wo ai ni bao bei ^_^

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    I have heard that if people use seafoam on old engines, it will dissolve away the carbon build up that plug a lot of leaks in old engines, maybe that is what the smogger used to help you pass smog, who knows? I'd ask the dude what he did specifically.
     
  3. Jun 19, 2009 at 6:03 AM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Causes


    A code P0136 may mean that one or more of the following has happened:
    • Faulty O2 sensor leak in exhaust close to O2 sensor Short to voltage on O2 signal circuit
    • Open in circuit resistance caused by corrosion in connector
    Possible Solutions

    • Replace the second oxygen sensor on bank 1 Repair open or short in signal circuit
    • Clean corrosion from connector
    A code P0420 may mean that one or more of the following has happened:
    • Leaded fuel was used where unleaded was called for
    • An oxygen sensor is not reading (functioning) properly
    • The engine coolant temperature sensoris not working properly
    • Damaged or leaking exhaust manifold / catalytic converter / exhuast pipe
    • Retarded spark timing
    • The oxygen sensors in front and behind the converter are reporting too similar of readings
    Possible Solutions


    Some suggested steps for troubleshooting a P0420 code include:
    • Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
    • Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).
    • Inspect the downstream heated oxygen sensor (HO2), replace if necessary
    • Replace the catalytic converter
     
  4. Jun 19, 2009 at 6:32 AM
    #4
    wildjerseyfirefighter

    wildjerseyfirefighter I sell fishing and fishing accessories

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    stock, for now
    i think that the cat is supposed to be warrentied for 100K...its a federal law
     
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