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2005 Hyundai Elantra Question: engine light on for 3yr,no auto problems.What is cost of diagnostic/02sensor

 

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Train11, 2.0L 4 Cylinder, Matthews, NC, April 01, 2013, 10:42
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what is cost of diagnostic and 02 replacement if needed?
Thanks David

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    arturo08 April 01, 2013, 11:14
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    if you shop around you may be able to get diagnostic for free, try autozone. if no auto problems, than i would not think the sensor needs replacement. it may be tripping due to slight but manageble issues like it may need a tune up, it may need a fuel system clean, etc.
    rec. fuel system clean. ethanol treatment to 1 tank of premium fuel. ethanol blend in fuel causes build in fuel system, combustion chambers, exhaust system and causes increased wear to spark plugs. possible build up trippin your sensor.

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