It would probably have to be hooked up to a diagnostic machine. Or you might be able to get a code reader to see if that does it.. but I doubt it if its a 2004, it probably will more than likey require the expensive diagnostic machine that is at mechanic shops.
There is a trans dip stick on the back side of the engine. This is where you add fluid also. GoodluckJOe
If a check engine light is flashing that means an engine cylinder misfire has been detected
usually with the vehicle running and in park then check the dip stick
how to check fuse for horn in a 1998 Pontiac sunfire
cant you need a scanner to check codes from 1996 and newer
it probably needs an O2 sensor they range from about 40-90 dollars
check this site------>
camshaft sensor - signal low could be that or check the wiring to it. Other possibilities MAF or TPS
check if your battery is low than usual ..might be alternator problem
There's probably no dipstick on a Sunfire that new. You need to add fluid at the transaxle itself. There's a plug in the side of the transaxle that needs to be removed to check or fill the fluid.
You mileage will vary dependent on the condition of your car, your driving habits and which engine/transmission you have. Check the web site below for exact specs. http://consumerguideauto.howstuffworks.com/1995-to-2005-pontiac-sunfire-6.htm
there probably isn't one. Pontiac discontinued trans dipsticks in models earlier than yours. You have to check the fluid at the fill plug on the trans itself.