Diagnostic advise repeated, car fixed, and tools

[David G]

Although I am not sure the problem with a poor runing 89 100 is entirely
fixed, advise on the list to change the O^2 sensor at teh start of any
diagnosis would have helped, had I listnened.  This along with bad idle and
WOT switches were at least major contributors to a running problem.
  I also found that under the right side of the dust screen under the hood
is a wire connector for a temp sensor.  This appears to be on most 5k's and
100/200's.  This can be taken from a wrecking yard car and a connector for
testing the amperage to the DPR can easily be made from this wire connector.

   Dave G