Engine Diag Help Needed

[James Mandy]

Hi,

> 1.  I am getting NO temperature readings on the gauge, but the harness and
> sensor seem to ring out electrically the way they should, except maybe a
> little low voltage on the power line  4.85V instead of 5 and the sensor
> itself read about 2.5ohms.

4.85 Volts seems to be normal, at least this is what my loom read also.

The sensor itself reads I think from .45ohm to 2.xx ohm, depending on temp.
If you search the mailing list you will find a good thread on this.
I found the exact specs somewhere.

> Also, I had to put a new connector on the Thermal Transmitter, not Temp
> Sensor.  But I cannot find anything about what it does in the FSM, could
> this be my problem?

I don't think so.
I was running my engine for a few days without the thermo sensor/sender even
plugged in at all.
It's supposed to run rich, however I didnt really notice a big difference.
Apparently this sender is for the ECU, so it can basically alter timing and
fueling depending on temps, etc..

Good luck.
James
[PULSSSAR] www.iinet.net.au/~nismo/ www.pulsar.org.au