I've always wondered what to look for when reading <u>E</u>xhaust <u>G</u>as <u>T</u>emperature. What are you looking for? How does the data aid in tuning? Is it also an aid to look for signs of a problem?

I know it provides useful data, but I'm curious because I have no idea how to interpret it.

 

Im looking for rising heat under boost loads.

 

EGT lets u know when ur engine isnt running correctly. Example... if u spike in boost and ur engine a/f goes lean.... ur EGT will climb and is a sign that something is going wrong.

Its very usefull gauge that can save ur engine.