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Re:FYI
Just wanted to pass this on in case anyone else runs in to it. It was indeed the egr passages within the intake manifold. Everything was working properly but the gasses had no where to go, there was no exhaust gas flow. I removed the exhaust gas temp sensor and used compressed air to force the passages open. The sticky goo risiding in the intake could be heard breaking loose and then it flowed freely. I haven't got the check engine light since this step. Yes, the intake still needs to be cleaned out however.
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