Check engine ligtht with message reduced engine power

SOURCE: check engine light "reduced enging power" message?

hook it up to OBD 2 scan retrieve fault code and go from that point!

SOURCE: chevy malibu displays engine power reduced

It's fuel related, check your fuel filter to see if it's clogged, let me know. Good luck, Jim

SOURCE: 2005 chevy cobalt, car wont start ... check

disconecting the battery should reset the pcm. but you will need to find out what caused the problems.

SOURCE: reduced engine power on

The traction control uses the speed sensor in the transmission and the wheel speed sensors to determine wheel spin. If a wheel spins braking is applied to it so that the power can be transferred to the other wheels. At some point the ECU detected a gross disagreement between the sensors and so as a precaution has entered into a limp home mode. On some systems if the fault is in error it can be cleared by putting the car into drive and moving forward a meter, putting in reverse and going a back a meter and doing this three times. If one or other of the sensors are faulty this process will not allow the error to be cleared. You need to check or have checked the error codes and the speed sensors.

SOURCE: Check engine light came on

reduced engine power message chevy cobalt 2006,cars sputtering, and when i presses on the gas the car wont move, i can put the pedal to the floor and the rpm's dont bulge