I have an 04 Monte SS that has some stumbling issues: Only happens when it's warmed up, but intermittently. I am planning on replacing the Mass Air Flow sensor, only because it was the code that popped. No other issues besides the stumble. Anyone else had this problem?

I had a '96 Monte with similar issues that I ended up having plugs, wires, fule pump, filter and injectors done. I don't want this to end up like that.

 

You can actually just try cleaning the MAF first, there is a MAF cleaner that you just need to spray on and let sit and dry.

Typically on warm startup the MAF is the usual culprit, and the code just helps with that.

 

Agreed^