454 chevy surging and stalling
My friend, who I travel with, has a 1994 chev 454 winnebago brave with throttle body injection. He has had continuous trouble with it and has not been able to solve it, despite many trips to the shop ...
Forum Discussion
First thing that came to mind is a vacuum leak. Had a very similar problem when the hose came off a PCV valve. Up and down RPM at idle but going down the road wasn't really noticeable. So try replacing all the vacuum lines.
