Hard starting/rough running '87 100T

[Eyvind Spangen]

A friend of mine has got an '87 100T 5-speed that acts up.

It has got almost no power and runs very rough at all speeds.
Yesterday it even refused to start, and today it started after 5-6
seconds of cranking, but idled at 1500 rpm and wouldn't go any higher
than 1500 rpm no matter what you did. Driving with it is impossible..

Sometimes (before it stopped "for good" it helped to stop the engine,
leave it off half a minute or so and restart it. The fuel pump was
changed by the PO less than a year ago..

We only get a "4444" by pulling the codes..

Any ideas? I tend to believe it's either something in the fuel system
(clogged pickup or filter) or a vacuum leak. Any tips/hints?

-- 
ES