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Bill,
When the system goes into closed loop, the duty cycle dithers back and forth around 10 degrees, say 45-55 or 35-45. If your system is not going into closed loop, it could be the O2 sensor signal (at the ECU with your broken wire), the main switch, or the throttle switch. What is your idle speed like after a 10 mile drive ? Is it rock steady or does it dither up and down slightly ?
Your control pressure is still too low.
The reason I suggested an analog dwell meter is that you can see the quality of the sensor input and the response in the rhythm of the needle swings. A good quality analog meter is a $10 tag sale item. A tight engine with good even compression and a new sensor has a very different pattern than an old motor with vacuum leaks and an old sensor. Look in the archives, other listers have had problems with digital meters that display an averaged reading.
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Paul
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