Code PO401, checked EGR valve w/vacurm tester, holding presure, what should I check for next

Tiny
GEORGE RRRR
  • 1996 TOYOTA COROLLA
  • 164,000 MILES

Checked egr valve working fine

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Friday, March 2nd, 2012 AT 4:25 PM

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Tiny
RASMATAZ
  • MEMBER

Check the EGR valve transducer and the vacuum switching solenoid

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Friday, March 2nd, 2012 AT 4:28 PM
Tiny
WRENCHTECH
  • EXPERT
  • 20,566 POSTS

Also check for a plugged passage in the intake manifold.

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Friday, March 2nd, 2012 AT 4:32 PM

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