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Replaced Camshaft Position Sensor But Still Get Code: Quick Fixes!


Replacing a camshaft position sensor while receiving a trouble code can be perplexing. Issues could arise from improper installation or inherent electrical problems.

After replacing a camshaft position sensor, receiving a persistent error code suggests there may be a deeper issue within the vehicle’s engine management system. The problem could range from a faulty sensor connection to underlying engine timing issues or a malfunctioning Engine Control Module (ECM).

Drivers seeking to resolve the code should ensure the replacement sensor is correctly installed, check for damaged wiring, and consider having a professional diagnose the vehicle to pinpoint the exact cause. This troubleshooting step is critical for maintaining engine performance and ensuring your vehicle operates safely and efficiently on the road.

Identifying The Issue

Frequent engine stalls or a car that refuses to start could signal a malfunctioning camshaft position sensor. Drivers might also notice poor acceleration, rough idling, or an overall reduction in engine performance. These issues often trigger a diagnostic trouble code (DTC), alerting drivers to the sensor fault.

Pinning down the culprit requires a systematic approach to diagnosis. It starts with reading the DTCs using an OBD-II scanner. Even after its replacement, persistent codes related to the camshaft position sensor could suggest installation issues, defective wiring, or an unrelated engine problem. Ensuring the correct sensor type and proper installation is crucial. Technicians may also perform a multimeter test to check the sensor’s electrical continuity.

Quick Fixes

Quick Fixes

Ensuring all electrical connections are secure and corrosion-free is crucial for properly functioning your camshaft position sensor. Check the connector and wiring harness for signs of loose or damaged wires. Make sure to re-seat the connector firmly, as intermittent connections can lead to error codes.

Physical damage to the sensor or its surroundings can also cause malfunctions. Carefully examine the area around the sensor for any signs of impact or abrasions that might affect its operation. A damaged sensor must often be replaced despite being a new unit.

Lastly, confirming the proper installation of the camshaft position sensor is essential. Double-check that the sensor is positioned correctly and that any installation specifications, such as torque settings, have been adhered to. An improperly installed sensor can produce false readings, leading to persistent error codes.

Further Actions

After replacing a camshaft position sensor and the code persists, it’s crucial to reset the engine control module (ECM). This can be done using an OBD-II scanner to clear any stored error codes. Simply unplugging the battery might not always reset the system effectively.

Ensuring the sensor is functioning correctly involves checking the installation and wiring integrity. A multimeter can be used to ensure proper voltages are being reached. A scope might also be necessary to verify signal patterns.

Sometimes, a persistent code indicates a more complex issue. Seeking help from a certified mechanic or automotive technician is advisable. They have the expertise and diagnostic tools to pinpoint and resolve underlying problems accurately. DIY fixes might not address the root cause and could lead to further complications.

Frequently Asked Questions Of Replaced Camshaft Position Sensor But Still Get Code

Why Does The Camshaft Position Sensor Code Keep Coming Back?

A recurring camshaft position sensor code may indicate a faulty sensor, wiring issues, or a problem with the timing components. Regular checks can prevent persistent errors.

Do You Have To Relearn A Camshaft Position Sensor After Replacing?

Typically, you don’t need to relearn a camshaft position sensor upon replacement. However, consult your vehicle’s manual as some models may require a reset or relearn procedure.

Does The Camshaft Position Sensor Need To Be Reset?

No, a camshaft position sensor itself does not require a reset. After replacement, start the vehicle to let the system recognize the new sensor.

Will the Camshaft Sensor Code Clear Itself?

A camshaft sensor code will not clear itself; you must address the underlying issue and manually reset it or use a scan tool.


A persistent code post-camshaft sensor replacement demands further diagnosis to ensure proper repairs. It’s vital to consider related components and wiring integrity. Persistence and attention to detail will lead to a smooth-running engine. Consult a professional as needed to address complex issues.

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