Mechanics

CHECK ENGINE LIGHT

2002 Mercedes Benz ML320 • 6 cylinder AWD Automatic •

2002 mercedes 320 ml check engine light?O2 sensor code po141 and po140 how many sensor are there before cat converter? Should both be changed?Thank you
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Johnce
March 10, 2011.




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Rasmataz
Mar 10, 2011.


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