On 19 Jul 2005 11:10:05 -0600, Toby Cowger >
wrote:

>:>: 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?
>:>
>:>: 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.
>:>
>:>As well as replacing the EGR valve, you'll need to remove the intake manifold
>:>and get all the carbon out of that, too. There is a kit available from Honda
>:>that has a teflon coated pipe to fit into the EGR port to reduce the tendancy
>:>for it to clog. It's about a half a day job for your first time.
>:>
>:>The TCS light and check engine light are probably trying to tell you that
>:>your transmission is failing. Get it into the dealer and they'll get you
>:>a rebuilt one put in for free. These are covered out to 100k miles.
>:>
>:>Unfortunately, your EGR system is only covered out to 80k miles. If you've
>:>got a really good relationship with your dealer, they might let you slide
>:>if you're just past 80k, otherwise, no.
>:>
>:>Check out www.odyclub.com for a lot of info on both these common problems.
>:>
>:>
>: tcs light usually comes on with the egr code, by the way tcs doesn't
>: involve the tranny it gets all its info from the abs sensors.
>: Chip
>
>Yup, Chip is right. TCS light comes on when the EGR system acts up.
>I had the transmission, EGR, and cat conv problems all at the same time
>and got my symptoms mixed up.
>
>Let us know how your repairs go!

as i recall it's a PIFNH system fail code, the traction control
doesn't work because the engine is in open loop mode constantly. It's
just the way it is.
Chip