Question about 2000 Hyundai Elantra

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IDLE PROBLEM... WHEN I TURN ON MY CAR FOR THE FIRST TIME IN THE DAY IT REVS AT 4K RPMS THEN WHEN ITS WARM UP IT DROPS SLOWLY TO 2K RPMS.. CHANGED IDLE SENSOR AND STILL DOING THE SAME THING. 1990 CIVIC SI MOTOR( ZC VTEC SOHC)

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Tps is a likely suspect...throttle position sensor

Posted on Dec 08, 2008

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