I 'am considering a chip from pcmforless. My car is stock except for replaced injectors. (Ford SVO yellow tops) The reason, after months of driving I've had a slight miss. Nothing bad, just the nagging, every couple of seconds, miss. Done pretty much all you would consider. Wires, plugs, rotor, cap, didn't replace the coil (the gizmo on the top of dist.) replaced the CTS, IAC, reset idle, timing, no codes. Would I be wasting my money? , am I dreaming this might solve my problem?. What would the chip do for me, other turn my fans on at a requested temp ?