I am new here. I have a problem with my wifes 2002 Grand Prix SE. The shop where she bought it from replaced the intake manifold gaskets. Now, it dosen't have 1st or OD. It is showing these codes P0128, P0753, P0758, and P1860. One is for the thermostat, two of them are shift solenoid sensors and one is the torque converter solenoid sensor. I am lost on this FWD. Is there a possible wire or vacuum line unhooked and if so where? Any help would be greatly appreciated! Thanks