1999 HONDA PRELUDE EGR VALVE

  • Tiny
  • garyg369
  • 1999 Honda Prelude

Computer problem
1999 Honda Prelude 4 cyl Front Wheel Drive Manual 223000 miles

replaced egr valve, after 70 miles engine light came on again, I took off line leaving valve and could blow through it, the old valve had lots of buildup

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Sunday, January 31st, 2010 AT 6:36 PM

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  • Tiny
  • KHLow2008
  • Expert
  • 41,994 posts

Hi garyg369,

What was the trouble codes retrieved?

Did you clean the passage under the EGR valve?

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Monday, February 1st, 2010 AT 1:06 PM
  • Tiny
  • garyg369
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Hi, the code was 401, no I didn't clean passage under egr valve, is it hard? Anything else? Thanks a lot for the reply

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Monday, February 1st, 2010 AT 4:50 PM
  • Tiny
  • KHLow2008
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  • 41,994 posts

Remove the EGR valve, spray some carb cleaner into the passage under the EGR valve and let it soak for a while. Use a stiff wire or something suitable used to poke the passage to dislodge the carbon and use compressd air to clear them. Repeat a few times if necessary.

Reinstall EGR valve and retest.

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Tuesday, February 2nd, 2010 AT 6:13 AM

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