I've a 16v 1.8 corrado and am having trouble starting it. I have checked the ingectors and they're fine, the spark plug sparks and the fuel pump works. When I have the rubber off the top of the vacum pump and open it by hand as if there's a vacum but don't think its letting any fuel throughb when the rubber is back together and all the hoses are connected. I even drained the tank as I thought the fuel may be contaminated or gone off as its been sitting for a long time. Put fresh fuel in and still no go. Any idea's, new vacum pump? :(