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    sjnowak's Avatar
    sjnowak Posts: 80, Reputation: 1
    Junior Member
    		  
    #1

    Aug 19, 2013, 07:02 PM
    engine light interpatation
    have a 2003 town n country van check engine light came on, went to the parts store to get it read. It said : catalyst system efficiency below threshold ( Bank 1 ) what does that mean in simple terms ?

    Also I would like to purchase one ot those engine scan tools, I don't need a top of the line professional grade one but don't want some chaep junk either, is there a good brand and model anyone would suggest, my brother in law has an auto x-ray and says its better than the one the parts store lets you use, I don't know, any suggestions ? Thanks.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Aug 19, 2013, 07:45 PM
    It means you need a new converter. You cannot regenerate the converter once it's efficiency drops below a certain minimum conversion percentage.
    sjnowak's Avatar
    sjnowak Posts: 80, Reputation: 1
    Junior Member
    		  
    #3

    Aug 20, 2013, 05:09 AM
    It had a new converter about a year ago, at that time the code reader said converter this time not. And sugestions on a brand of scanner to get ?
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