[Dakota_Don]

so we are working on an aveo swapping heads p0300,p0700,p1781 codes and according to the dealer it had bad valves. anyway we find out the engine is a 06 not an o4.. so we get it all back together after a month with batt disconected.. we fire it up and it idles rough.. it has code p0300 again.. it has new wires,plugs,coil,crank and cam sensor..with this engine being an o6 not an 04 will the cam or crank reluctor rings be different? is a cks relearn needed? i dont think the timing belt is off, i rotated the engine by hand twice and the marks lined up.. any other ideas??

thanks

Don 618 604 4120