So, how are you seeing the position of the flap while you are driving? You should go back and read posts #54 and #83.I try coldstart, idle with gas on, gear1 low speed moving, pullback after running, i can only find it open. But some one told me it will close when shift up from gear1 to gear2, it seems maybe sense but I didn’t verify it yet
When I was researching this I had my wife drive the car and I followed behind with her on the phone so I could look down the exhaust pipe and see the behavior of the flap baed on what I was telling her to do. It behaved exactly as depicted in the chart. In first gear it was always open. In general terms, above that it would open whenever she stepped on the gas and close when she let off the gas.For those that dis connected .....did the butterfly , flap, move around at all....not being energized and all ?