Yep.... Check what the Error codes are.
The Resistor value should be about 560 Ohms.
Also what is the EEC Model ?????
Ie EECIV or EECV.
If its an EECV, then the error codes that these things produce can be common across the range (I think, dont quote me on this).
Here is a site on the EECV, that has some information on the sensors and features on the EECV
<A HREF="http://vehicle.me.berkeley.edu/mobies/powertrain/engine_mgmt/EECVp1-2.html">http://vehicle.me.berkeley.edu/mobies/powertrain/engine_mgmt/EECVp1-2.html</A> Unfortunately, this doco doesnt have the error codes, but I could try and get them for you if you are interested.
Not too sure about the EECIV though. (I.E. if the error codes are consistent with say a V8 Falcon ??????) None-the-less, Ive got the Falcon ones, which may be of assistance to you.
Send me an email if you are interested.