How To: Test whether error code P0401 on a 2004 Ford Focus is accurate

Test whether error code P0401 on a 2004 Ford Focus is accurate

Error code P0401 on a 2004 Ford Focus indicates EGR Insufficient Flow, which usually means your DPFE sensor needs to be replaced. If you're not sure though, and you shouldn't be, watch this video to learn how to perform a test that will make sure your DPFE sensor is actually broken before you replace it.

Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.

Buy Now (97% off) >

Our Best Phone Hacks

Gadget Hacks' tips — delivered daily.

Be the First to Comment

Share Your Thoughts

  • Hot
  • Latest