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

Tiny
GEORGE RRRR
  • MEMBER
  • 1996 TOYOTA COROLLA
  • 164,000 MILES
Checked egr valve working fine
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Friday, March 2nd, 2012 AT 4:25 PM

2 Replies

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
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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