I just bought a 96 B4 TDI. I thought it was just like my 97 B4 TDI. My old car was built in 10/96. The one I just bought was built in 12/95. I couldn't really pass it up because of the low miles: 150K and the relative parts bonanza within. It had been sitting for years. I thought it was a 1Z like my car. I noticed it has a solenoid cutoff on the back of the pump like an old mechanical pump. It had a T fitting on the fuel return, and the one end went to some to some type of electric controlled valve. It had 6+ gallons of the gauge but would not hit. We used a vacuum pump to pull some air out of the pump. Still no good. Out of desperation, I held a wire between B+ and the solenoid on the pump and shazaam. So it ran and I paid the guy $900 for a sideswiped B4. I really wanted the engine and trans as I am now at 336K miles, I figure I can use it within a year or 2. Now I did some research and find it may have a different ECU. The pump is def slightly different, but electronic. Can anyone expound? Thanks