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**Update**
Took the fuel filters out again and the filter directly off the gas tank to the sump was filled with black crap again. Decided to pull all the filters and replace. Replaced filters and car ran much better. [I may have to drop the tank and get it cleaned if this keeps happening]
Then, put the fuel pressure gauge on the fuel feed line after filter before rail and found it was at 27 psi at idle (~865rpm). So, I think the FPR is bad or just got clogged. I'm going to pull the FPR tonight and see if it is clogged. Hopefully after cleaning it will return to 35 psi.
Will update with info.
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