Engine CAM code P0021?

Tiny
BHAMDOC1973
  • MEMBER
  • 2015 SUBARU OUTBACK
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
I thought the problem I had with the mess while driving was solved by replacing the plugs, but it came back. So, it seems to only happen when the car is cold. No lights on the dash until this happens, feels like you almost out of gas, couple of hiccups, never stalls or shut off, traction, brake, ABS, and check engine lights all come on. I scanned it and the brake lights came just due to the mess from engine, so it is not it. The engine came with code p0021 for cam. Any suggestions? And where is it located? Is it one on passenger side by front of the valve cover? This engine has so many sensors it's hard to pinpoint it.
Wednesday, July 12th, 2023 AT 6:49 AM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
I would remove the intake valve timing control solenoid on Bank 2 and see if the oil screen is clogged, the engine oil must be clean and full as well. Please check the electrical connector to the valve and actuator. Here is more information as well.

The error code P0021 corresponds to a problem with the Variable Valve Timing (VVT) system with the intake valve timing control solenoid on Bank 2.

Check out the images (below). Please let us know how it goes.
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Thursday, July 13th, 2023 AT 11:07 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,545 POSTS
I removed and cleaned both sides, both sides are not stuck.
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Thursday, July 13th, 2023 AT 11:14 AM
Tiny
KEN L
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Did you test for continuity across the terminals of the valves? It should be less than.5 Ohms, let me know. You could have a bad actuator valve.
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Friday, July 14th, 2023 AT 8:44 AM
Tiny
BHAMDOC1973
  • MEMBER
  • 1,545 POSTS
I think it has 8.7 ohm.
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Saturday, July 22nd, 2023 AT 9:52 AM
Tiny
KEN L
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  • 47,256 POSTS
That is not good, I would get a new part.
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Sunday, July 23rd, 2023 AT 1:38 PM

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