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  1. 1.8 Liter Turbo
    I have had a check engine light on for years. It is a 2001 VW beetle GLX 1.8T, 50k miles. The car gives the PO171 code which is running lean everything indicated a vacuum leak. I have changed all the vacuum lines and the code keeps coming back. The car runs fine, doesn't run rough or stall. I...
  2. 1.8 Liter Turbo
    I just installed a k&n cold air inake on my 2002 1.8L turbo beetle. Now my check engine light is constantly coming on. It is throwing code po171 (system too lean, bank 1). I installed the enclosed small air breather on the secondary air pump hose end that disconnected from the stock airbox...
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