Mechanics

CHEVY

1990 Chevrolet Caprice

Engine Performance problem
1990 Chevy Caprice 6 cyl Two Wheel Drive Automatic

i changed the spark plug and now the car wen started up, it goes in to a high idle mode for a couple seconds. Then it drop to its normal idle. Wat could that be?
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Eejay0319
November 10, 2010.



Was it doing this before you changed the plugs? Any applicable mil codes?

JDL
Nov 10, 2010.