like i post a few days ago i block-off the fitv and put a used but working iacv
the car start and idle super fine at 800rpm. Now the car can be at idle the whole day at 800rpm but if you run it around the block when you park it start
bouncing 1k - 1.3k. If you turn off and let it seat for 5 minutes and start again went to 800. Maybe the iacv i bougth isnt workin properly?

Any help
thanks