Incredible 04 Impala Can Check Engine Light Mean Bad Speed Sensor References. This happens most notably when accelerating to pass while cruising at speeds of 50mph and up. Learn more about the fixd sensor and mobile app today!

Low oil can cause some trouble codes to flash related to vvt. Either way, you should stop driving immediately. Web there has not been any check engine light activity, and he plugged in his machine and found no trouble codes.