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On 14 Nov 2005 at 16:20, Steven Cooper wrote: > I recently picked up two NOS FI wiring harnesses off ebay. You don't happen > to have a listing of which wiring harness goes with which brain? Start by finding the connector that goes to the throttle valve switch, and count the pins there. 68-9: 2 pins 70-1: 4 pins 72-3: 5 pins Within those three eras there were some variations, but that will narrow it down. I think there were more different harnesses that came on cars than VW sold as replacements, just because the replacements were more generic, but there was at least one replacement for each of the 3 generations above. BTW, the 72-3 throttle valve switches have a potential problem that you CAN weed out beforehand. Get a good sensitive DVM and measure between the 2 pins that normally give out the alternating pulses to the brain. You should get NO flicker of resistance between these 2 pins at any point along the range of motion of that shaft. In other words, the slider is supposed to connect to those 2 pins alternately, but it should never short them together. -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~