Why do my rpms stay high for about 4 minutes at 2000rpm when I start the car each

Jayguy

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day?
it has all its mantinance and I checked for vaccum leaks
slowly drops to normal idle of 750-650
could it have anything to do with the distributer
 
Lots of cars do it. It idles high for a minute until the engine warms up. All of my older cars did it but i havent noticed it with the new cars.
 
a bad throttle position sensor will cause that too happen ,have a scan done on it to see if it has any trouble codes in the computer this will help you a lot on that one,good luck.
 
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