I am sorry but living in Canada I cannot purchase parts from the sites sponsor. I would if I could as this site is priceless. Since I generally pay more than Americans for parts and am a natural scrounger. When decent prices come along I tend to jump aboard. I imagine the primer pump would normally cost about 40.00 one way or another here.

Before moving on to other areas I would verify what I suspect is happening. A very simple test might be to elevate a fuel container as high as practical and feed the gravity output directly to the injection pump. Let the car sit as many hours as you like. If the car then starts instantly you have positive proof of where to start searching.

Many things could be leaking air in. Since I am pretty positive but not certain your problem is in this area. It is still where I would test by some method before moving to other areas. . You can do the gravity test prior to the arrival of a replacement primer pump for example.