There are a number of things to consider. First of all, has anyone read and recorded the diagnostic fault codes? What about watching what happens to fuel pressure when the problem occurs?
By now you should have figured out replacing random parts is the most expensive and least effective way to diagnose a problem. "Four kinds of sensors" doesn't say what was replaced, or why. When the fuel pump was replaced, was that just the pump and motor, or the complete assembly with the housing? What about the pick-up screen attached to the housing? Has anyone check camshaft timing to see if the timing chain jumped or is loose?
Tuesday, February 28th, 2017 AT 4:24 PM