Hi. Have 2016 eco diesel. took it into the dealer for the recall on the high pressure fuel pump they ended up changing the hole fuel system injectors, fuel lines and the pump inside the tank. Due to contamination. Now there telling me it still won’t built any rail pressure and there blaming it on the throttle body. Any one seen this problem before? Truck has been deleted. I am thinking faulty High pressure fuel pump but they’re telling me all test came back fine.