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Here are the descriptions of your Flash codes.
The power wiring supplies 12 or 24 volts to the ECM/ECU. The system must be sourced directly from the battery. ?
Note: Connection to reverse polarity will damage the system if not properly fused.
Flash Code 46 p 168/1 indicates that the main battery supply voltage to the ECM/ECU has dropped below the recommended operating range.?
The DDEC V system will operate on 12 or 24 volts. ?
Troubleshooting Flash Code 22, PID 91/FMI 4
This diagnostic condition is typically:?
Refer to "28.2.1 General Throttle Information (Automotive Limiting Speed Governor)" for general throttle information, refer to "28.2.2 Multiple Code Check" to begin troubleshooting Flash Code 22. ?
The correct TPS/AP Sensor counts for DDEC engines at idle should be 64 - 205 counts.?
If you have no voltage to the TPS, you may have a wiring problem from the ECU or you have a possible ECU problem.
Please let me know if you have any more questions!