Engine Codes P0011 and P0021 Explained: Low Oil, VVT Problems, and Timing Issues
Engine Codes P0011 & P0021 – Low Oil, VVT Problems, or Timing Issues When your check engine light comes on and you see P0011 or P0021, the problem usually involves the variable valve timing (VVT) system. These codes indicate that the camshaft timing on one or both cylinder banks is








