Weird Idle Occurence

BADFISH6

Member
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2007 Mazdaspeed6 Metallic Grey
When my car is idling and the wheel is turned, the tach goes up 100-200 rpms then goes back down to normal idle when the wheel is still. Why would this be?
 
power steering kicking on. don't worry, all cars with power steering do it. nothing to be concerned about. :)
 
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