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Engine light on error po420 and po410

(2002 Mercedes-Benz C230)
in Potwin, KS on January 10, 2013
the reset last 3 monts
Displaying 1 answers & 1 comments
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of Greg's Orange Auto on January 10, 2013
these are catt codes seek diag as to a catt issue or fuel system issue
on April 07, 2014
replaced ctt and o2 sensors
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