David,
Nice one!   I had never heard of this way of testing the Temp II
sensor.  Nice one about the needle through the insulation to check the
voltage.

I guess the standard way to test it is with an ohm meter to measure
resistance?  Your test seems more thorough.

-- Craig

On Wed, 6 Oct 2004 14:50:35 -0400, David Beierl <dbeierl@attglobal.net> wrote:
>  measure
> voltage across T II sender (two-terminal sender at thermostat housing
> left-rear of engine.  T-II should show under a tenth of a volt on warm
> engine.  Use a needle through insulation of the wire on the non-ground
> side, to the ground bolt at left head. If high, sender is bad or bad
> contact or bad ground.  If close to zero, turn off ignition, unplug the
> sender, ignition on again and look for five volts on that line.  If still
> zero, broken wire to ECU or ECU problem.