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Failed Smaog, Possible EGR problem

Old Mar 10, 2008 | 11:52 PM
  #1  
ss927
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Default Failed Smaog, Possible EGR problem

So I have a 1988 Honda Accord that justfailed smog,it failed the emissions test. Anyone else have this issue, any insight on what it might be, thinking maybe the EGR. Any input would be awesome... Thanks in advance
 
Old Mar 11, 2008 | 12:25 PM
  #2  
TexasHonda's Avatar
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
Default RE: Failed Smaog, Possible EGR problem

On many Accords, the EGR ports where EG is injected into intake manifold become clogged leading to CEL and code for EGR low flow. Is there any DTC code set?

Is this acarb or FI engine?

Lack of EGR flow will cause high NOX and failed emission test. Cause can bebroken vacuum line,failed vacuum switching solenoid orthermovalve, failed EGR valve, blocked EGR ports/passages. You will need to get a manual for your car and follow diagnostics.

good luck
 
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