Well, this is a very good thread. I've been watching it grow from the onset, and only just came to read it through. I'd like to see to it that Bill's car becomes the dependable vehical that we all tout our Datsuns to be. Let's review - Bill started this thread with what struck me as the classic "rust in the tank" senerio. Having gone through that myself, I can tell you that his symptoms mirror what I experienced to a tee. My dear friend Stephen gave him proper sugestions to eliminate other possible causes that are less extensive that pulling the tank, and Bill went through them. After sorting a few things that might have arose through the process of the diagnosis, His car now runs as it did, with the same malfunction occuring. Do I got it right so far? What I'd like to see is what is coming out of the fuel filter. Before I corrected my problem, I would remove the filter and empty it (via the inlet) onto a white paper towel. I would find much rust dust on the towel upon this. Mind you, the dust was not the source of my woes, only the indication. The reall culprit was large rust flakes inside the tank. I've no expirence with the later FI cars, but I'm willing to bet they are equiped with a large metal can fuel filter, mounted back by the pump. - True? If so, Bill, are you able to pull this and test as above? I know that "Flat on your back - arms in a tight place" is tough for me at 47 years old (it's the mileage, not the years). But I'd be interested in what comes through this test.