Thanks for the info Rusty.  Sounds like I'll be wrestling the wild EMU for quite a while.  BTW, while I had my engine apart I drilled thermocouple holes into the housings next to the leading plugs.  Hopefully this will give some useful "CHT" data. 

Mark S.

At 10:10 AM 3/11/2004 -0600, you wrote:

Did you use any of the stock Mazda sensors?  Where did you get the VDO
sensors?  What about your EGT sensors?  Did you install CHT's?

Mark S.
(inquiring minds want to know)
I didn't use any stock Mazda sensors, but I believe the temp sensors could be used.  You would have to do the science experiment to calibrate them, but then you could post the results, and be a hero to everyone else :-)  In the FD at least, the oil pressure sensor is a goofy thing, that's most unreliable, so you won't want to try to use that anyway. 
 
I installed these EGT sensors:  http://store.summitracing.com/partdetail.asp?part=ATM%2D5247
 
I sure hope they last, because replacing them means going back into that EGT/CHT connector on the EM-2.  I grounded the other 2 EGT inputs, and hooked up 8 foot of CHT wire to each of the CHT's.  These are twisted, and soldered on the ends to make a probe.  These are coiled up in the engine compartment now, for use as experimental temp probes.  Unless I find a specific use for them, they won't be permanently connected to the engine. 
 
For the record, I'm going to be monitoring the following with the EM-2:
 
water temp out of the WP housing
water temp into the WP housing
water pressure
oil temp into the engine
oil temp in the pan
oil pressure
fuel pressure
O2
2- EGT's
OAT
MAP
voltage
Pitot/Static for TAS
both fuel tanks
fuel flow
4- CHT probes for testing various temps
(and everything else I can't remember off the top of my head)
 
Cheers,
Rusty (off to tame the wild EMU- stay near the phone Tracy <g>)