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2000 Toyota Echo Question: my check engine light is on ,has been for a while, now my car failed smog test

 

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kateye, Potwin, KS, February 06, 2013, 19:55
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AIR INJECTION - filed diagnostic test said, mass air flow circut+ air temp.sensor circut

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  • Answer #1

    Greg's Orange Auto (12976 Answers) , Orange, CA - (714) 361-9386
    globalhelper February 07, 2013, 06:50
     Master

    you need to have circuits tested to start with and if good test sensors.are they unpluged or have corrision on them

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    csubak30, February 07, 2013, 07:43
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     Master

    Agree with #1....you can clean the MAF sensor yourself.

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  • Answer #2

    DocSpockpei May 30, 2014, 18:09
     Rookie

    take out the MAF, clean it inside , the 2 resistors , spray in brake cleaner, use "Q" tip to wipe off, let it air dry, 10-15 minutes. then disconnect battery or reset codes with code checker, car should run fine and chk light out. I dont know anything about smog test, we don't have that here in Canada. SORRY

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