Bob,
A little background on running with the MAF unplugged:
With the MAF unplugged, the PCM switches to a limited operation strategy known as "limp-to-the-garage-or-home". Instead of using dynamic inputs for determining A/F ratio, the PCM uses default spark timing and injector timing tables that have been preprogrammed to "get by".
Since these are default values, the engine will run, but not particularly well.
Glad you finally fixed everything. It would have been interesting to see the O2 sensor outputs graphically to see just how they were responding.
Steve
