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PASSSSSSSSSSSSSSSED IT!!! lots of that after work tonight, haha.
Interestingly, HC and CO, while still very low, were three times higher than they were during the runs without the EGR working. CO2 was nice and high indicating a good mixture, not lean.
So, I must admit that while I was hating on emissions at the beginning of this adventure I am glad to have gone through this. My truck is running better than it ever has and I assume I fixed some vacuum leaks along the way. I have a ton of low end grunt and the idle is rock solid. Also, a note for EGR. I do not notice any difference or loss of power in the upper rpms. I do not know why people disable this system, maybe just for some myth that EGR will rob horsepower, or that if a system is there to help emissions it must be from big brother trying to control our lives. My butt dyno tells me it does nothing to hurt the power output, and lowering cylinder temps can ONLY be a good thing for the motor.
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