Rick 12/27/2012

2002 Honda Accord LX 4Cyl2.3L - Engine

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Got a check engine light, code p0135 and p0155. How do I fix it?

CIL is not affecting performance. Tech at Autozone says it may be a bad o2 sensor. Is that correct?

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  Bill 12/27/2012

  Change the front O2 sensor first. For ease of replacement for the DIY I would use one that has the correct wire pigtail connector (OEM) not an after market, try this site http://www.autopartswarehouse.com/

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  Bill 12/27/2012

  You may not notice much of a performance issue because the ECU (computer) has gone into a default mode for the engine to continue operating. Only thing you may notice for sure is a MPG decrease.