Yes, as you posted I have looked for the "other culprit" to the o2. No I did not do a conversion. I have a stock 94. I just used the term Maf. Did not really know there was a diff.
Anyway, I have the SD unit apart right now. It "looks" clean. Yeah I know it can look clean, but be dirty. What do I clean with? Brake cleaner and Qtip? Alcohol and Qtip? Air comp? How much is a new unit? And I notice to disassemble I have to have a torx bit with the little safety nipple to do so. Thanx Ford
Thanx in advance for your efforts. I am sure I will eventually eliminate the source. Why diagnose when I can throw parts at it.