1998 Honda Accord Engine light

96,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MANSOURCITO
  • MEMBER
  • 1 POST
Hi

My car had engine light turned on, I got error code P1491, I change EGR valve bout still the light come on, what is the problem?

Thank you
Mansour
Mar 11, 2009 at 8:29 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi Mansour,

It could be :
1. Clogged exhaust passage.
2. Faulty ECM.
3. Wiring fault.
4. Faulty EGR valve.

The testing procedure involves more than 30 steps.
Mar 15, 2009 at 5:41 AM
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