Rough Idle

[bludodger at att.net]

I am trying to solve my rough idle problems and have a
few questions. There is a distinct clicking (sounds
electrical) coming from what seems like the throttle
body when the car is at idle. It happens intermittently
and is quite clear (although I can't see the part that
is causing it). Is this a normal occurrence? Could the
clicking lead me to the solution?

I have cleaned the ISV and this has not helped my
problem. My next steps are replacing the temp. sender
and the O2 sensor. A quick question about the O2
sensor...will I be splicing the new one at the Cat. end
of the line or at the engine connection end? I am
planning to use the Mustang V8 O2 sensor. Anything else
I should know about the Sensor replacement procedure?

How likely is the temp. sender the culprit? Any other
ideas for a solution?

TIA
--
Blu
'88 80q--175,000mi.