Ok, first let me say that I have had a blast restoring this 928 (my first Porsche) and I have learned soooooooo much from my fellow brothers and posts on this site.
Now I have a great one for those Sr 928 specialists -
First off let me explain what is happening. I had to remove the air plumbing and valve covers as they were atrocious - had them powder coated, so far nothing big on the difficultly scale.
928 was not running when I got it - Mass Air Meter was not plugged in (most likely needs to be replaced considering the condition) YOU WILL LOVE THIS ONE, linkage to the air intake "butterfly valve" under the air plumbing was not even hooked up so the 928 was sucking oil vapor from the passenger bank as its only source of O2.
Well after cleaning everything, new plugs, new gaskets, rebuilt and flow matched injectors, media cleaned fuel rails, new vac lines and dist block routed the same way as the diagram under the hood, we got it back together and test fired, sounds like we are only on about 4 cylinders.
Vac pressure is about 25-28 PSI
Fuel Pressure is about 39 PSI
Plans for this weekend included
Verify and clean all grounds (which is how I got in this mess)
Verify spark across all 8 and the dist
Verify injectors are firing
NOW THE 84 MILLION DOLLAR QUESTION
When cleaning and inspecting the grounds I found this precarious looking ground on the front fender (See pics) WHAT IN THE WORLD IS THIS FOR and where does that ground go that I followed under the car??
Sometimes I hate technology.. SORRY i cant post pics direct, no idea how.. I followed the directions (for once) and look where it got me.
http://i205.photobucket.com/albums/bb107/banginbodies/Project%20928/DSC06053-2.jpg
http://i205.photobucket.com/albums/bb107/banginbodies/Project%20928/DSC06054.jpg
http://i205.photobucket.com/albums/bb107/banginbodies/Project%20928/DSC06056.jpg
http://i205.photobucket.com/albums/bb107/banginbodies/Project%20928/DSC06057.jpg
http://i205.photobucket.com/albums/bb107/banginbodies/Project%20928/DSC06058.jpg