+18 2006 Chevy Impala Flashing Check Engine Light Ideas. Web if it is flashing, it indicates a severe misfire and the engine should be shut off. The third way that the check engine light shows up is when it rapidly flashes.
Common symptoms of a faulty o2 sensor include poor fuel economy, rough idling, and a decrease in engine performance. My engine light is on, got it checked by a computer code machine, they say not a major problem but something to do with gas evap or temp change. If not then take it somewhere and have the codes checked and cleared with a scan tool.
