I've been wondering lately if it's normal for an Rx to stutter at idle. Even right after I had just bought the car and it was bone stock, it still had these little hiccups while sitting idling.

as the car warms up they don't happen as much or at all

 

That misfiring or popping could be attributed to a parial amount of exhaust gases being brought back In to the next cycle.

 

Could be because you're running rich. Check your TPS.

 

Thats what I was trying to get at with your thread. In terms of your Spark Plugs being In good shape.