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2004 Pontiac Grand Prix

Question: surge

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mskelly65, Lebanon, MO, December 27, 2010, 16:02

 Rookie

I put on a K&N 57 Series FIPK air intake and a 2.5 cat back exhaust on. Now the car surges and misses under hard acceleration. I have only had the check engine light come on one time and then it went back off. I am Confused and don't know what to do to fix the problem.

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• Answer #1

  joelburke26 from Joels Auto Service, December 27, 2010, 16:20
  

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  ive heard alot about this problem.your exhaust is most likely gonna be ok but that k&n filter might need to go as the media is oil drenched and will clog up or ruin your mass airflow sensor.get a can of mass airflow sensor cleaner made by crc for about $9 and clean the mas.go back to your standard air filter and see how it works from there.
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