The p1724 code and the is the one P0021 code is giving us a clue it could be the camshaft sensor or a problem in the VVT system. Here is what is said.
In the context of a 2014 Subaru Outback, the P1724 and P0021 diagnostic trouble codes have the following meanings:
P1724: Subaru does not utilize this specific code. If you're getting a P1724 on a Subaru, it might be best to confirm the code again using a reliable OBD-II scanner. Always ensure the scanner is compatible with your vehicle make and model.
P0021: This code is defined as "Camshaft Position 'A' - Timing Over-Advanced or System Performance (Bank 2)." This indicates that the Engine Control Module (ECM) has determined that the bank 2 intake camshaft is more advanced than what the ECM has commanded it to be.
This could be caused by a few things:
Variations in oil viscosity, oil clogging or dirty oil can cause the variable valve timing (VVT) system to malfunction.
A faulty camshaft position sensor or a defective solenoid.
A timing chain that has jumped a tooth.
A problem in the VVT system.
It's important to note that this issue can lead to decreased fuel efficiency, engine performance issues, and potential engine damage if not addressed.
To rectify these issues, you would need to:
Verify the code with an OBD-II scanner.
Check your engine oil level and quality. Change it if it's dirty or if the wrong viscosity is used.
Inspect the wiring and connections to the camshaft position sensor and VVT solenoid. Repair or replace as necessary.
Check the timing chain alignment.
If necessary, replace the VVT solenoid or the camshaft position sensor.
Here is the camshaft sensor location. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
Images (Click to make bigger)
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Tuesday, May 30th, 2023 AT 5:41 PM
