HOSE AS 3904564 - Caterpillar

Expected Result:Both of the wires have continuity. Terminal P1-58 is not shorted to ground.Results:
OK - All of the measurements are within the specifications. The wiring appears to be OK.Repair: Perform the following procedure:
Connect the J1/P1 ECM connectors. Connect the harness connector for the fuel metering valve.
Restore the electrical power to the engine. Start the engine and run the engine. Check for an active 1446-8 code.If the code does not recur, the problem appears to be resolved. The original problem was probably caused by a poor electrical connection. Refer to Troubleshooting, "Electrical Connectors - Inspect" for information that is related to troubleshooting intermittent electrical problems.
If the 1446-8 code remains active, there may be a problem with the ECM or with the fuel metering valve. Perform the following procedure:
Temporarily install a new ECM. Refer to Troubleshooting, "ECM - Replace". If the problem is resolved with the new ECM, install the original ECM and verify that the problem returns. If the new ECM operates correctly and the original ECM does not operate correctly, replace the original ECM. Refer to Troubleshooting, "ECM - Replace". If the problem is not resolved with a new ECM, install the original ECM. Continue with this procedure.
Temporarily install a new fuel metering valve. If the new fuel metering valve operates correctly, the problem is resolved. If the new fuel metering valve does not operate correctly, install the original fuel metering valve. Retest the system.STOP
Not OK - At least one of the measurements is incorrect.Repair: There is a problem with the wiring between the ECM and the fuel metering valve. Repair the connector and/or the wire, when possible. Replace parts, if necessary.STOPTest Step 4. Check for Electrical Power at the Fuel Metering Valve
Refer to Illustration 1. Measure the voltage for the fuel metering valve at the engine power distribution box.The battery voltage must be between 18 V and 32 V in order for the fuel metering valve to operate correctly. If a problem exists, correct the problem before you continue.
Set the engine control to the OFF/RESET mode. Switch the 35 amp circuit breaker OFF.
Disconnect the harness connector for the fuel metering valve.
Set the engine control to the STOP mode. Switch the 35 amp circuit breaker ON.
At the harness connector for the valve, measure the voltage at the following terminals:
F and Z (keyswitch power)
W and Z (battery power)Results:
OK - Both voltages at the harness connector are within 2 V of the voltage at the engine power distribution box. Proceed to Test Step 5
Not OK - At least one of the voltages are not within 2 V of the voltage at the engine power distribution box.Repair: The fuel metering valve is not receiving the proper operating voltage. There is a problem in the harness or in a connector. Determine the cause of the excessive voltage drop. Perform the necessary repairs. Verify that the repair eliminates the original problem.STOPTest Step 5. Check the Resistance of the CAN Data Link at the Harness Connector for the Fuel Metering ValveNote: When the