Hello everyone well have a 1997 Audi a4 2.8 Quattro was running great until last Friday drove it all day but it had a rough idol but ran good til I tune it off. The next day went to start it cranks and cranks and it doesn't start. Took the cover off the throttle body and the two flex tubes that go to the valve covers had water in them and slim is this normal I need help. How do I check for spark and how do I check to make sure the fuel pump is working? and how do I clean these flex tubes?