Quote Originally Posted by mazade View Post
The only thing I can contribute is that my '11 Aveo (Manual) seems to want to do the same thing, randomly, and the only way I got it to stop was to unplug the MAF connector.
...bear with me now...
I know the MAF is not the problem, as it is also NEW, along with a few other components, as you have performed...
I can't say for sure that this will work with your year, as I know that my Ecotec is a complete fly-by-wire setup and is dependent on every fart that the computer cares to contribute, so in my case I know that I've broken the closed-loop 'better performance and fuel economy' mode, but, at least it doesn't rev up to 4K+ RPM...
I do need to find the time to subject this thing to a real shop, and not my shade-tree attempts.
My issue resolved when I unplugged the PCM (computer) and the MAF sensor as the same time and left these unplugged for several minutes. Plugged in the computer and cranked it up and it ran OK. No immediate max rpm event. I turned it off and reconnected the MAF sensor and started it again. Also, no immediate max rpm event. I drove it around the block a few times and it ran ok. I did have to clear the MAF code that was set when I first cranked it up but I haven't seen it since. Runs as good as expected for an Aveo. Thanks for your reply and hopefully our comments here can help someone else.