Primary complaint: oil leak at the high pressure fuel pump. With a new seal on the pump the engine was very difficult to start and often didn’t or repeatedly stalled.
Is tuning an engine for maximum performance and/or fuel efficiency an art or a science? We’ll cover the basic and specialty tools every tuner should have in his/her tool box.
One of the first tests that should be performed during a no-start or drivability diagnosis is for proper fuel pressure. But there’s more than just pressure to think about.