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2003, V8 base through this code yesterday. It had been surging at speeds 10-45 mph. Code indicates Fuel Injection Pressure Sensor so I looked up the part and came up with the second part pictured, the black plastic looking one, and I ordered it. But when I was trying to confirm the code and correct part on Facebook a day earlier another guy posted a pic of this other part (first photo, silver metal piece with threads). So need help confirming which is the correct part and locating it on my fuel rail.
P0191 code. fuel pressure sensor?
