Scroll down to the bottom of this link. http://aa1car.com/library/2004/us70444.htm
It provides an updated procedure to make sure the tension is set correctly on the focus if you have an older shop manual.
Check out this video http://www.youtube.com/watch?feature...&v=PfPOZzNmh9Q
I want that software, seems better and cheaper then my snap-on solus. Interesting diagnostics on a focus ZETEC.
Of course on that video, the exhaust cam ended up being advanced like 60 degrees too far, and the engine still ran which is impressive.