Having a Subaru and seeing the error code P1494 can be a concerning issue for many drivers. This code indicates that there is a malfunction in the EGR Solenoid Valve Signal #2 Circuit, which can lead to improper idling, poor driving performance, and even engine breathing. If you’re experiencing any of these symptoms, it’s important to understand the potential causes and solutions for this code, so you can get your car back on the road. Subaru Code P1494 can be caused by a few different issues, but the most common are wiring harness between the EGR valve and power supply, poor contact in the ECM and EGR valve connector, and a defective EGR valve.
Causes and Solutions of Subaru Code P1494
| Cause | Solution |
|---|---|
| Wiring harness between EGR valve and power supply needs repair | Have the wiring harness inspected by a qualified mechanic and repaired if necessary. |
| Wiring harness between ECM and EGR valve connector needs repair | Have the wiring between the ECM and EGR valve connector checked by a certified technician and replaced if necessary. |
| Poor contact in the ECM and EGR valve connector | Ensure that the ECM and EGR valve connector are properly connected and that all connections are secure. |
| Defective EGR valve | Have the EGR valve inspected and replaced if necessary. |
Wiring Harness Between EGR Valve and Power Supply
When Subaru Code P1494 is triggered, it’s most likely due to an issue with the wiring harness between the EGR valve and power supply. This harness can become loose or corroded, resulting in a loss of power to the EGR valve. A qualified mechanic can inspect the wiring harness and repair or replace it if necessary.
Poor Contact in the ECM and EGR Valve Connector
Another common cause of Subaru Code P1494 is poor contact in the ECM and EGR valve connector. This can prevent the engine from properly controlling the EGR valve, resulting in improper idling and poor performance. To fix this issue, a certified technician should check the wiring between the ECM and EGR valve connector and replace it if necessary.
Defective EGR Valve
If the wiring harness and ECM-EGR valve connector are in good condition, then the cause of Subaru Code P1494 is most likely a defective EGR valve. This valve is responsible for controlling the flow of exhaust gas, and if it’s not functioning properly, it can cause the engine to run rough or stall. Have the EGR valve inspected and replaced if necessary.
Conclusion
If your Subaru is displaying the code P1494, the problem is most likely related to the wiring harness, ECM-EGR valve connector, or the EGR valve itself. It’s best to have a qualified mechanic or certified technician inspect and repair the problem as soon as possible, to avoid any further damage to the engine. With the right diagnosis and solution, you can get your car back on the road in no time.
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