I cannot stab the throttle. If I do the car dies. If I'm cruisen' say 30m or 40 mph down the road and try to stab the throttle it will die. Vice versa.......if I take my foot of the throttle while driving 10 to 50 mph then the car will die. I have changed all the sensors, coilpack (at least half a dozen times), throttle body,iacs', injectors ( actually it has done this with 42#,55#,72#,83# injectors) I have had the fuel pressure everywhere and it does not make a difference. I have also switched out the ecm, plug wires plugs and plug gaps. Nothing makes a difference. Any suggestions?