Car starts, then dies quickly after oil pan change. Codes P0021&p0011,+oil light

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cleaned ocv solenoid valves, next step is camshaft position sensor, and thinking oil pressure switch. Any other ideas would be greatly appreciated. Replaced oil pan, huge pain, and codes popped right after. Car runs smooth for anywhere from 5 to 10 seconds at idle, then comes to an abrupt halt. Thanks in advance for any advice.