Code P0340, Camshaft bank 1?

Tiny
JUAN ARIEL ARIAS GONZALEZ
  • MEMBER
  • 2011 SUBARU WRX
  • 2.5L
  • 4 CYL
  • 4WD
  • MANUAL
  • 226,000 MILES
I want to know where the camshaft location bank 1 is located for my vehicle listed above hatch turbo. Can find it car stalls and turns off or sometime won't turn on.
keep getting code p0340.
Monday, May 19th, 2025 AT 2:45 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
I can tell you the sensor might not be the problem, it will have this code as well when the camshaft timing is off due to low or dirty engine oil, or the timing chain/guides are worn/broken, or the camshaft actuator has gone bad.

P0340 - Camshaft Position Sensor "A" Circuit Bank 1

Here is the location of the cam sensor (right side, rear of the cylinder head) so you can check it out. Make sure to clear the codes once the sensor is replaced. Also, does the engine make noise at idle? If so, this can be a sign the engine timing system is having an issue, if you upload short video of the engine idling, I can tell for sure. Check out the images (below). Please upload videos in your response.
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Monday, May 19th, 2025 AT 7:13 PM

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