Honda Car Forum

#1 (**permalink**) 18 Sep 2006, 12:22 pm

What's the best way and or cheapest way to fix my 1997 Honda Accord EX v6
PO401 EGR flow fault? Can the EGR valve be cleaned instead of replaced or
could a vacuum leak cause the fault?

#2 (**permalink**) 18 Sep 2006, 04:00 pm

Michael Frohlich wrote:
> What's the best way and or cheapest way to fix my 1997 Honda Accord EX v6
> PO401 EGR flow fault? Can the EGR valve be cleaned instead of replaced or
> could a vacuum leak cause the fault?
>

My '98 Odyssey (VTEC 4) is showing the same code.

#3 (**permalink**) 25 Sep 2006, 09:52 am

| Can the EGR valve be cleaned instead of replaced or
| could a vacuum leak cause the fault?

http://www.autozone.com/servlet/UiBr...ginRepairGuide

#4 (**permalink**) 25 Sep 2006, 01:25 pm

TE Chea wrote:
> http://www.autozone.com/servlet/UiBr...ginRepairGuide
>

Good idea, but no help if your Honda was made after 1995.

#5 (**permalink**) 26 Sep 2006, 01:59 am

Most VTEC Hondas have trouble with blockage in the EGR supply pipe. This is
usually caused by corrosion, and often times the pipe itself has to be
replaced. It has nothing to do with the EGR valve...their failure rate is
almost non-existent.

J

Michael Frohlich wrote:
>What's the best way and or cheapest way to fix my 1997 Honda Accord EX v6
>PO401 EGR flow fault? Can the EGR valve be cleaned instead of replaced or
>could a vacuum leak cause the fault?

#6 (**permalink**) 26 Sep 2006, 09:55 am

hellranter wrote:
> Most VTEC Hondas have trouble with blockage in the EGR supply pipe. This is
> usually caused by corrosion, and often times the pipe itself has to be
> replaced. It has nothing to do with the EGR valve...their failure rate is
> almost non-existent.
>

Is cleaning or replacing the EGR supply pipe a DIY-able task?

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