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Did you let it run almost empty...? I'd change fuel filter...then check fuel pressure. Also recommend cleaning the iacv. Also maybe clean the MAF(CRC MAF cleaner sold at autozone. ..made a night and day difference on my 240. May only be a temp fix, these mafs like to go bad.). I doubt it's timing...but could be.
I'd also like to add, my egr is bad and doesn't affect my idle, nor performance whatsoever. Are you throwing any codes?
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