Got a 2007 1.5 GD,

Had it scanned, error was a ignition coil.
Replaced all for of them for peace of mind now scanner says battery failure in which we restarted the battery and everything is okay but
still problem persists at driving low rpms 1500-2k, tendency is the engine slighty revs automatically and vibrates a little specially when you stick it to 2kRPM Checked transmission all working well. Reconfigured shift solenoid, cvts all working well. Replaced shift solenoid 1st qtr of 2013

Could it be a dirty throttle body?
Needing any help or inputs please
Thanks

 

Just a guess... Check out the (two) o2 sensors?
I just finished replacing all four of my plugs and coils this past weekend. I went with "Beck Arnley" cost my $50 per plug. What kind did you get? If you got the really cheap kind then that might be an issue...