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I have cleaned the egr ports. Also yes I was taking a reading while opening the egr and the samething. So the dpfe is not working I am guessing. Also all the mechanics are stumped do to why the motor runs smooth when I set the pcm back to zero when taking off the neg. I will try again tonight on it I spent all day yesterday on I was almost tempted to take the valve cover off and tighten down the head bolts a little just in case blow head casket.
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