1997 MERCURY TRACER INSUFFICNT EGR FLOW CODE P0401

  • Tiny
  • dsiewert
  • 1997 Mercury Tracer

Computer problem
1997 Mercury Tracer 4 cyl Front Wheel Drive Automatic 173000 miles

I have a code that states insufficent egr flow. There is no vacuum leak and the engine performs flawlessly. What is the chance that the egr valve is the defective part on this car. I removed the valve and cleaned it w carb cleaner. How do I reset the check engine light and if not the egr valve what else could it be?

Dan

Tuesday, November 25th, 2008 AT 8:18 PM

1 Answer

  • Tiny
  • BMRFIXIT
  • Expert
  • 19,554 posts

Out the egr tube comes two small hoses that they go to a sensor
its called DPFE sensor
98% its no good
replace it good luck

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Tuesday, November 25th, 2008 AT 8:26 PM

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