Hi Folks, I finally got my van running right. I had been measuring the O2 voltage to set the AFM bleed screw but I had not been getting it hot enough so I was not setting it in the right area. I read a few more archive entries and found that it has to be really hot and tried again. I had been adjusting the bleed screw to too rich ( 1/2 turn out from bottom) and the sensor/ECU was compensating and leaning it out. I then found a position where it was too lean (4 1/2 turns out from bottom) and the O2 sensor/ECU made it richer. I picked a position about half way in between (the voltage reading dances about) and then tuned the throttle body screw with a vacuum gauge and got a steady 17 inches. It ended up being 2 1/2 turns out from the bottom. Now it runs great ...no hesitation, O2 sensor plugged in. My year model was the first with power steering ('84 Wolfsburg edition) and also has a/c but has no relays to raise the idle speed. The idle holds reliably with the a/c on but not if I turn to full lock as well. I guess I can live with that. Cheers, Steve Cotsford |
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