Failed CA emission for high NO at 25mph -.

Tiny
ANONYMOUS
  • 1995 TOYOTA PREVIA
  • 169 MILES

Failed CA emission for high NO at 25mph - registered at 542 NO with 533 NO max allowable. Passed NO at 15mph - registered 412 NO with 508 NO max allowable.

HC and CO readings all good registered well within max allowable.

Can I fix myself or needs an expert mechanic? I'm guessing EGR system needs cleaning/replacement?

Thanks for your help,
Raul

Tuesday, March 5th, 2013 AT 4:40 PM

1 Reply

Tiny
KHLOW2008
  • EXPERT
  • 42,026 POSTS

My guess is a failing catalytic converter.

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Wednesday, March 6th, 2013 AT 2:06 PM

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