1998 Honda accord EGR problem?

Question

I have a 1998 Honda accord. I had 2 codes p1491 and po400 or something like that. Tge po400 went away when I replaced the EGR valve but the p1491 (insufficient egr lift) remains. My boyfriend unclogged the egr port which was really clogged but the code came back. Could my new egr valve be defective? I already replaced the oxygen sensor on the engine about a hear ago. Not sure where else to begin looking. Any ideas?

J · Accepted Answer

You'll need to check the vacuum pipes going to the egr valve. broken pipes etc...

else way, you're looking at a wireing fault.

Xever · Answer

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1998 Honda accord EGR problem?
I have a 1998 Honda accord. I had 2 codes p1491 and po400 or something like that. Tge po400 went away when I replaced the EGR valve but the p1491 (insufficient egr lift) remains. My boyfriend unclogged the egr port which was really clogged but the code came back. Could my new egr valve be...

Anonymous · Answer

the passages leading to the egr valve are clogged...it's really a job for someone with honda experience

honda guy · Answer

if the car is a V6 then you need to replace the EGR tube with the EGR valve.  Honda had a service bulletin out on the EGR valves and the 'kit' to use to replace one.  The port in the intake usually gets clogged as well.  

here's a link to the service bulletin
http://hondadude.webs.com/sb99085EGR.gif

hope that helps

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1998 Honda accord EGR problem?

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