More codes and a CEL (MIL?) ... Any ideas?
 

I have yet to STFA but I received a CEL on the way home from the hospital with the new baby. WTF? Sign of things to come?

This is on the 6-speed, my ride, not the wife's tip.

19497 -- P3041 Implausible Engine Temp. (from Inst. Panel) ... that explains why in the middle of traffic on a 100 degree day the temp sensor just randomly dropped form being pegged in the middle to "C" .. only happened once, though.

17545 P1137 Bank 1 too rich
17547 P1139 Bank 2 too rich
17658 P1250 Fuel Level too Low (I did run it to 0 miles left, but that shouldn't be an issue?)

I guess I get to go hunting for a vacuum leak. I also want to look for a boost leak, as I have a nagging suspicion by stock Y-pipe is probably swiss cheese.

Again, '03 six-speed, It's an S-box...

Well the temp sensor on your dash, and the too rich codes are simple and related.
 

Your coolant temp sensor is bad, you can get one from ECS, or who ever you prefer and replace yourself for ~$25 or if under warranty have the dealer do it.

Not sure on the fuel level never seen that one before.

You really think the sensor is bad? After the next restart (and subsiquent days)q
 

the temp has been reported correctly.

After STFA the too-little fuel thing is indeed because I ran the tank almost dry.

That leaves the two, too-rich codes. It could be MAF (per a post much further down on the page) or related to the lack of gas, if some crud got in and got an injector or something.... or a vacuum leak. We'll see if it comes back or not.

bad sensor...
 

they go on and off. When off, the ECU can compensate by adjusting the fuel and air flow in order to keep the engine running cool. This can be related to the other problems.

The fuel is just that..too low at one time.

Codes stay until manually cleared. So a low fuel warning will stay in the memory. If you clear the codes wait untill you see another fault. Then scan it again to be sure.

Yup bad sensor. For the cheap price it is an easy fix.