I have a 2011 Ford F-150 FX2 3.5 Ecoboost, 125,00 miles. It will not start if it sits for hours. It acts like it's a dead battery but battery is brand new and checked out. The diagnostic codes read P06B8 Internal Control Module Non Volatile Random Access Memory (NVRAM) Error and then secondarily reads, ECM/PCM Relay De-energised too early. How do I correct this so it will start every time.
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