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2003 Toyota 4Runner Question: I have a chick engine light come up and the vsc track light,catlystic converter

 

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Azong, Garnet Valley, PA, January 28, 2014, 13:37
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Bank 1 was the code displayed when diagnose

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    January 28, 2014, 13:48
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     Master

    PO420 CODE?

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    Azong, January 28, 2014, 13:55
     Rookie

    Yes. Actually this problem started when I change the plugs and one of the plug head had a crack and there was a misfiring when I was on the high way

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    pushrod, January 28, 2014, 15:13
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    Need a scan test to view live data and pull any codes present.

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    Azong, January 28, 2014, 15:56
     Rookie

    I did and came up with code 101tresh hole bank 1

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