LB7: P0401&P0404=EGT drop???

WanaDmaxsub

Junior Member W/gray hair
Feb 17, 2007
644
1
18
CEL is on. EGR codes...not a big deal...I'll fix it when I have a chance...too much other..."stuff" going on right now to worry about this.
The one thing that I have noticed is that at idle my EGT's have droped a good 30deg's. I use to wait 15-30sec before it would idle down to 320, now when I look at the gauge it's allready below 300. Just wondering if anyone noticed the same thing?