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Dec 22, 2016 | 4:13 PM

dgtownsendrn

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P0521 or P0523

Hi I have a chevy impala 2008. the above codes are displayed when I had my service engine light diagnosed. Please let me know what this could mean. I had an oil change about 5 weeks ago. I don't know if that is significant info. Help!!! please. High oil pressure. What does this mean?

Last edited by dgtownsendrn; Dec 24, 2016 at 6:40 AM.

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