DTC Troubleshooting: P0641 (PGM-FI System (3.5L Engine)): Notes

DTC P0641  : Sensor Reference Voltage A Malfunction

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NOTICE: 

Before you troubleshoot, review the How to Troubleshoot - Refer to: How to Troubleshoot the Fuel and Emissions Systems (3.5L Engine) or How to Troubleshoot the Fuel and Emissions Systems (3.0L Engine) .