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Discussion Starter #1
My truck just randomly decided to not start, it ran fine and I shut it off to go into a restaurant and when I came back out it would crank but not start. multiple cel's and the oil pressure warning came on, on the dash. codes are P0522 P0642

And yes I have checked my fuel filters and re primed the fuel system
 

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You say you re primed it, was there air in it? If so that’s a good place to start


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Discussion Starter #3
No there was no air in the fuel. I also have a fass pump so im certain its getting fuel
 

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Yeah you should be good there then. Do you have access to a scanner that can read rail pressure and the like? With no codes it’s hard to chase it without being able to view engine data


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P0522 engine oil pressure circuit low voltage
DTC P0642 5-Volt Reference 1 Circuit Low Voltage for Crankshaft Sensor


Looks to me like you may have a circuit problem/ECM problem tied to your engine oil pressure sensor. Maybe a problem with the crank sensor/circuit also
 
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