Replaced fuel pump and filter. Fuel pump works. Confirmed fuel gets passed filter. Fuel is not getting into motor. Manual pour fuel in case and fires up until fuel is gone. Confirmed power is getting to #5 fuel injector. Located fuel pressure valve on fuel rail. How do I test pressure ? Is there something I am missing as to why fuel is not getting to motor ?
I have been working on a simular problem on my daughter's vehicle. with the following additional symptoms. It only fails while hot. Runing fuel preassure checks, I noticed that the preassure rises from 30 psi while running to 40 psi after turning off the hot engine. This is caused by the expansion of the fuel in the rail. I believe that this hgh preassure is causing the regulator to stick closed preventing the fuel to get to the rail during a restart, (as the preassure drops to 0 while the fuel pump does whirrrr during the startup proceedure). It seems to free up after it has cooled then works normally. We ordered a new regulator but haven't received it yet to see if this fixes the problem. There is a possibility that the problem is a weak pump that cannot overcome the stuck regulator but since all the checks are in spec, I'm leaning toward the regulator at the moment.
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