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 ...
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Get some carb cleaner and spray along the base plate gasket of the throttle body. You may have a vacuum leak there. Also check all of the the vacuum lines to make sure honey are concnected to the proper ports. Hook up a timing light to coil wire if it has one and shine the light on the fuel cone coming out of the injector and look to see if there are big droplets of fuel mixed in. The other thing is that the minimum air rate screw may have been adjusted incorrectly. You must block the idle air control port (there is a special tool that will do that) and then set the rpm to the correct spec. (Can't believe I remember all of this). Good luck
