Mikel58

I thought I was losing my mind until I saw this post. I was seeing high ECTs on my AP1 S2000 and finally decided to check the sensor calibration. 
I'm going to test this out today with my temp gun but according to other standalone ECUs, the AP1 ECT calibration should look like the following: 
C F Ohms
0 32 6205
10 50 3920
20 68 2454
30 86 1604
40 104 1072
50 122 738
60 140 535
70 158 387
80 176 284
90 194 210
100 212 159
110 230 121
120 248 95
130 266 75
140 284 60

I confirmed yesterday on my AP1 that the settings above are much more accurate then the Bosch sensor that's configured in the S2000 base map. I think Link should update their base map to avoid confusion in the future. 
I have a GM IAT sensor and before the engine is running both IAT and ECT match now 

That's apple discrimination! I am iRate at being iNconvenienced.

You can use the CANTEE and CANJST for both power and CAN.  Just be aware AEM use a different pinout in their 4pin DTM connector if your wideband came prefitted with a DTM4 on it.  
The CAN port power supply for the ecu's with the 4 pin JST such as the S2000 is rated at 3A continuous and is protected with self-resetting fuses. It will power most widebands no worries. 
The AEM bitrate is fixed at 500K.  The Link CAN gauge can be set to 500K though so they can run on the same bus.  There is one gotcha at the moment - the bitrate setting is only available in the Android gaugeart app, last I heard it wasn't in the iPhone app yet.   So you will need an Android to do the initial gauge setup.  

The wideband will pull around 2A so it depends on how good your power to the ecu is.  It would be safer to run it off of a separate relay you trigger with power and ground from the CAN JST4.  The CANTEE should work just fine with the CANJST4.  The problem you will have is the AEM uses 500kb/s communication rate and the CAN Gauge uses 1Mbit/s.  I don't think there's a way to change the CAN Gauge or AEM wideband communication speeds.  All devices on a given bus need to be at the same speed.