That means that the computer see's a problem with the emmission system are the transmission. Need to have engine scaned with a engine scanner to see what is going on.
A flashing check engine light is an indication of a misfire.
Oxygen sensor stuck lean.
In my 1998 Chevy Astro V-6 it is 4.5 quarts. check an owners manual.
try checking the fuel filter first.If that is not clogged check the fuel pressure...
A flashing check engine light usually indicates a misfire. You need to check codes to know possible causes.
Check your coil pack or the spark plugs.
Check the junk yards
check your fuelpump
Go to ths site. It says you can not change the timimg on a 97 astro. as of now I am looking to do that to mine since it keeps misfiring. It states that the computer does the timing work. So if the ditributor cap is on wrong that causes it to misfire.http://www.justanswer.com/questions/27r9v-1997-chevy-astro-van-check
Check the air filter.
How do you reset check engine light for the 2009 Chevy trail blazer?
Causes for the check engine light to come on in a 1981 Chevy Corvette include overheating, low oil pressure, and a bad alternator. Because this car is not equipped with a computer, it has limited self diagnostic abilities.