I recently got my hands on a 1989 vandderplus it was sitting for 4 years I did the tune up change sparkplug wires and battery it cranks but don’t seem like gas is going in and my message board is saying circuit 1 and 2 failure does anyone know what that means??and also I don’t know where my gas latch is I’ve been using emergency gas lever in trunk please help

If the gas cap is flat then it (should) just needs to be pushed down and released.