Normal EGT Temps

[RichB]

Does anyone know what normal EGT temps look like?

 

[RichB]

I have an Aeroforce Interceptor Gauge and the parameter called "Cat Temp B1S1" looks like EGT but the values seemed a little high to me at first.

After a little research, I found out that what i am seeing may be right. Here is what I am seeing:

1300 - 1400 Deg F @ Highway Cruise

1500 - 1600 Deg F @ WOT

I haven't waited for the temps to level out at idle after I was warmed up but the temp drops to between 1100 - 1200 Deg F at a traffic light.

If these seem off, someone please chime in.

 

[Darth Vader]

Definitely not out of whack for a modern emissions-compliant motor, I don't think. It ain't real "cat temp" of course, there being no sensor in the cat. I think it's primarily O2 temp and load-based calcs deriving this figure. If I'm wrong about that, someone correct me.

 

[RichB]

Its definitely a calculation but it is weird that it is labeled Cat Temp since it is so obviously the temp before the CAT.

 

[mr_mazda329]

hmm.. Can you monitor this on the DH?

 

[RichB]

I have no idea

 

[Darth Vader]

Yep.

 

[matsuda]

Since the MS3 ECU cannot monitor the actual cat temp (there is no sensor for that) the temperature is inferred.

"Cat Temp" is a standard OBDII PID.