Injection Actuation Pressure Control Valve - Test
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| Diagnostic Trouble Codes | ||
| CDL Code | Code Description | Comments |
| E164 | High Injector Actuation Pressure | The Electronic Control Module (ECM) detects an injection actuation pressure that is greater than The ECM will log the event. The status of Injector Actuation Current parameter on Cat® Electronic Technician (ET) will ramp to zero percent. |
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| Troubleshooting Test Steps | Values | Results |
1. Use Cat ET to Perform the Injection Actuation Pressure Override Test A. Start the engine and run the engine at low idle speed. B. Start the Injection Actuation Pressure Test on Cat ET. C. Increase Desired Injection Actuation Pressure to D. Decrease Desired Injection Actuation Pressure to |
Injection Actuation Pressure |
Result: The system is working properly. There may be an intermittent problem. Repair: Refer to Troubleshooting, "Electrical Connectors - Inspect". Result: The system is not working properly. Proceed to Test Step 2. |
2. Disconnect the Injection Actuation Pressure Sensor A. Turn the keyswitch to the ON position. B. Disconnect the injection actuation pressure sensor. C. Monitor the Cat ET status screen and verify that Injection Actuation Pressure defaults to approximately D. Reconnect the injection actuation pressure sensor. |
Result: The pressure defaults to the proper value. Proceed to Test Step 3. Result: The pressure reading is not approximately Repair: Troubleshoot the circuit for the injection actuation pressure sensor. |
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3. Temporarily Install a New Injection Actuation Pressure Sensor A. Turn the keyswitch to the OFF position. B. Temporarily install a new injection actuation pressure sensor. C. Start the engine and run the engine at low idle speed. D. Start the Injection Actuation Pressure Test on Cat ET. E. Increase Desired Injection Actuation Pressure to F. Decrease Desired Injection Actuation Pressure to |
Desired Injection Actuation Pressure and Injection Actuation Pressure remain within |
Result: The system is working properly. Repair: Permanently install the new sensor. Verify that the repair eliminates the problem. Result: The problem appears to be with the injection actuation pressure control system. Repair: Troubleshoot the circuit for the injection actuation pressure control valve. |
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