Iv'e got the same engine in my protege. I'll check the service manuals to see what it says about the whole shutting off deal. Also does it idle low sometimes when you're coming to stop? If that's happening, replace the spark plugs. I go through 2 or 3 sets a year b/c of that. The FS engine eats spark plugs, it goes lean at wide open throttle anywhere above 5k rpms.