Mike,

I'll try to help if possible.  I missed your previous posts, so if you
could update me on the values of fuel pressure, vacuum, and what has
been checked.

There is a good post by Mike Finkbiner that covers much of what I've
said in the past on the list, but each van is worth individual
consideration. One recent discovery was a improperly connected vacuum
source on a 1.9.  Steve said that the PO had crossed the distributor
vacuum and the FPR vacuum, and that not only caused rich running, but
bad timing.

Why do you suspect the FI wiring harness, it appears that the injectors
are working.

There is a service bulletin regarding replacement of the wire from O2
sensor to the computer.

Sincerely,

Mark Keller
91 Carat
Cowichan Bay, BC