Seems random.....first thought is oil pump . then sensor...
SOURCE: will a faulty oil pressure sensor shut the truck down/2007 dodge ram 2500 5.7 hemi
Yes,here it is.http://www.autozone.com/autozone/parts/Duralast-Oil-Pressure-Switch/2007-Dodge-RAM-2500-3-4-ton-2WD/_/N-jq7tpZ8znc6?itemIdentifier=715966_0_8537_
P0232....Fuel Pump Secondary Circuit High
P0230....Fuel Pump Primary Circuit
P0215....Engine Shutoff Solenoid
P0122....Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0522....Engine Oil Pressure Sensor/Switch Low Voltage
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