The symptoms that have happened are VERY much in line with those in this thread: Unfortunately the OP has not returned to post a solution (if one was found) - [ Scratch that - I contacted him and HIS fix was a blown DIS (10A) fuse. Not my fix, though)
http://www.aveoforum.com/forum/f82/no-spark-22155/
My daughter was driving 2 days ago on the highway, and the car simply shut down. She was able to coast to a safe spot in a parking lot off the highway.
What I know so far:
-2008 Aveo LT
-As far as she can recall - the CEL came on first before all the other dash lights came on like a christmas tree.
-Engine turns over with key - but does not try to even sputter as if it were trying to ignite fuel.
-Starter fluid sprayed into the intake does not ignite. (It kind of coughed once - but not on subsequent tries)
-Fuel rail IS pressurized
-Pulled the cosmetic cover from the engine - and timing belt is in place and feels "okay" to the press of a finger.
-Coil secondaries both measure equally at 5.6k Ohms. Have not measured primaries yet.
-Battery was dated 12/14 had no charge. I did *not* try to charge it - given our Texas heat - I opted to go ahead and replace it. (It had some slight swelling to the battery case).
-New battery makes no change in the situation so far.
What to try?
Thanks,
Rex Smith
Richardson, TX