Cps new, everything is pretty much new, caps rotors plugs wires air filter fuel filter fuel press reg fuel pump relay coils wires wire harness coolant sensors. Had a merc master tech look at it, might have found the problem took off the coil wires and found the connectors were not screwed on from the factory correctly he tighten them correctly and now you can't even feel the car idle, drove it twice so far so good??? Will see