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Published on Aug 12, 2009
In order to lower vehicle emissions to pass inspection, take care of maintenance items, such as spark plugs, ignition wires and fuel filters. Discover how oxygen sensors and catalytic converters can degrade over time with help from an ASE-certified master automobile technician in this free video on lowering emissions.
Expert: Clark Mason Bio: Clark Mason is an ASE-certified master automobile technician. Filmmaker: Christian Munoz-Donoso