Domain: technology (Hardware Troubleshooting and Maintenance)
Problem: I am troubleshooting the V8 engine from Image 2 because the high-pressure pump in Image 1 has failed. The car is smoking during startup and I found a messy mixture of oil and fuel inside the intake manifold. I suspect that the fuel leaked into the crankcase and was then pulled back into the intake through the PCV system. Does this reasoning make sense for this specific engine architecture? I plan to replace the pump, the oil, and the filter along with cleaning the intake, but please tell me if I have overlooked any other essential parts that need to be replaced.
Answer: Correct. Replace the high-pressure fuel pump, oil, filter, and fouled spark plugs; clean the intake system.