I am curious what is the normal egt range on your pyro gauge while normal GVWR, GCVWR, X-cab, LB, LML Duramax Allison the installed pyro (post) and a pre- turbo installation temperatures. Max EGT's for extended periods of time.
I have mine installed at the downpipe after the turbo, what is the difference in temperature compared to the manifold location? If I see.
After two weeks and towing miles, my new digital gauge This is the first data I have from a Duramax. Sounds like your pyro is located downstream of the turbo. Also, you might have a look near the end of TDP's 2002 gauge install piece to see more info about typical LB7 pressures and temps.