First of all thanks a bunch to all of you that helped me before, the car runs smoother now that it has new spark plugs, cables, fuel pressure regulator, among other things but the rough iddle still there after a few minutes of the engine being runing. Does anyone have any ideas what could be the problem?
The engine runs smooth from startup to about 15 to 20 minutes that the iddle gets real rough. Someone mentioned a vaccum leak somewhere. Besides that is it possible that the engine's timing is off? The car doesn't start right away, takes a couple of tries to start cold. Any help appreciated.