Why is my 1999 chevy tahoe is idiling high when its in gear?

1999 CHEVROLET TRAILBLAZER
120 MILES
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UNKLE AL
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  • 1 POST
I recently put on a K&N air filter and replaced my intake manifold gaskets. I checked to make sure everything was tight, unhooked the battery to reset it, What am i missing?
Dec 13, 2011 at 7:04 AM
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RIVERMIKERAT
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The computer may need to relearn the parameters due to the increased airflow.
Dec 13, 2011 at 7:13 AM
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