Q: 2008 Chevy Impala 3.5 reduce engine power I have changed out the oil pressure sensor throttle body and the camshaft position senso

Hi Twan. Thanks for contacting us today. A Reduced Power light usually indicates a fairly serious problem with the throttle system. When this light illuminates the vehicle will often go into a “safe mode”, which will severely limit the speed of the car and in some cases will render the vehicle un-drivable. If this warning light is not on, then it’s possible that your issues are caused by an obstruction of carbon deposits inside fuel injectors, throttle body or mass air flow sensor. Dirty fuel and air filters can also cause these issues. You might want to have a professional mechanic complete an onsite inspection to help you diagnose this problem.