Honda Car Forum

My engine check light came on and the ODB code indicates restricted EGR
flow. Looking briefly I see what appear to be sensors in the exhaust before
the cat con and in the cat con itself, but I do not see the EGR valve nor
the line to it. Anyone familiar with these enough to tell me if this is a
reasonably easy service job and where the EGR valve is located?

Also, and curious, the TCS light has intermittently come on when the engine
check light was on. Neither has come back on since I reset the codes and
have driven it several trips, including up to 60 mph with decel. several
times to get the EGR system check to operate. I wonder if maybe there is a
bad ground or transients in the system. I see complaints of erratic engine
check lights and unreliable ODB codes on Hondas of this era. Anyone have
some knowledge of this stuff?

Any recommendations for service manuals would be appreciated. I intend to
order the Honda manual, but if there are others that are more useful I'd
like to know.

The van has 80K miles on it. I am an electronics tech working on repairs at
the component level and have a DIY level of auto repair skill that is above
average.

Thanks,

Leonard

Your problem is carbon in the intake manifold egr port. Honda has a kit for
these and an 80k warranty extension. If you are past this and want to try a
cheap fix, you need to pull the intake and clean the carbon out of the port.
If your only code is the p0401, and not p1492, which indicates an egr valve
position error, this should fix it, but it will likely return eventually. I
would go to your dealer and try to get them to goodwill it. This is a very
common problem, and they will likely cover the whole thing, if not just the
parts.
"Leonard Caillouet" <lcaillonospam@devoynet.com> wrote in message
news:xoCCe.47171$up5.29306@lakeread02...
> My engine check light came on and the ODB code indicates restricted EGR
> flow. Looking briefly I see what appear to be sensors in the exhaust
> before
> the cat con and in the cat con itself, but I do not see the EGR valve nor
> the line to it. Anyone familiar with these enough to tell me if this is a
> reasonably easy service job and where the EGR valve is located?
>
> Also, and curious, the TCS light has intermittently come on when the
> engine
> check light was on. Neither has come back on since I reset the codes and
> have driven it several trips, including up to 60 mph with decel. several
> times to get the EGR system check to operate. I wonder if maybe there is
> a
> bad ground or transients in the system. I see complaints of erratic
> engine
> check lights and unreliable ODB codes on Hondas of this era. Anyone have
> some knowledge of this stuff?
>
> Any recommendations for service manuals would be appreciated. I intend to
> order the Honda manual, but if there are others that are more useful I'd
> like to know.
>
> The van has 80K miles on it. I am an electronics tech working on repairs
> at
> the component level and have a DIY level of auto repair skill that is
> above
> average.
>
> Thanks,
>
> Leonard
>