Flashing check engine lights on GM vehicles indicate cylinder misfire. There are many reasons an engine may "run rich" but bad fuel/air mixtures will cause cylinder misfires. Also, unlike other trouble codes that cause the engine light to stay on, misfire detects are the only cause of a flashing MIL(malfunction indicator lamp). Therefore the ECM will read "blank" when you scan it. You may want to look at spark plugs and wires. O2 sensors may also be the culprit. Check your intake as well, if the engine isn't getting enough air, it may flood itself with more fuel to compensate for the power loss. And that will cause it to "run rich".
Runs continually as long as the engine is running.
The 2013 Chevrolet Corvette has a V8 engine.
The 2007 Chevrolet Corvette has a V8 engine.
The 2001 Chevrolet Corvette has a V8 engine.
The 2002 Chevrolet Corvette has a V8 engine.
The 2003 Chevrolet Corvette has a V8 engine.
The 2009 Chevrolet Corvette has a V8 engine.
The 2011 Chevrolet Corvette has a V8 engine.
The 2012 Chevrolet Corvette has a V8 engine.
The 2008 Chevrolet Corvette has a V8 engine.
The 2005 Chevrolet Corvette has a V8 engine.
The 2004 Chevrolet Corvette has a V8 engine.