2001 Ford F150

2001 FORD F-150
10,000 MILES • 6 CYL • 2WD • MANUAL
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JOEFRAA
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  • 1 POST
engine light is on code 401 insuficant exhaust recirculation i already changed egr valve and egr control valve sensor what else would cause this code
Mar 9, 2010 at 6:13 PM
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SERVICE WRITER
  • ✓ASE Certified Mechanic
  • 9,123 POSTS
  • ASE Certified Mechanic
DPFE Sensor was replaced?
Mar 9, 2010 at 7:02 PM
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2 LINSEY
  • ✓ASE Certified Mechanic
  • 287 POSTS
  • ASE Certified Mechanic
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