Another brief update:

Checked the duty cycle with my Sears meter and discovered that the cycle would not cycle! Everything checked out initially - 70% KOEO and 50% when started...but after the car warms up, the cycle - using the volt reading on my multimeter instead of the duty cycle - goes to 1.02v and stays there, which is the same voltage I was reading when I just checked the O2 sensor voltage. If I increase rpm's, voltage increases some, but then drops right back down to 1.02v.

Never had this happen - I have had some trouble figuring out the duty cycle and have never been able to get it close enough to each other at idle and at 2500 rpm (within 10% or so), but never this...something is wrong!

Help anyone?

ryan

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RG Newell

1984 300D
1972 250
1986 560SL
1991 300CE