2001 Accord V-6 coupe. The computer keeps throwing PO401 insufficient EGR flow. Checked stock valve per manual, OK. Replaced it with aftermarket valve, no change. If I run Lucas fuel treatment it'll stay out for a couple tank fulls. Is there a modification I can make, or can someone point me to a thread that deals with this problem? When the check engine light is on, other lights come on and off eg. TCS, SRS, side air bag, brake fluid. As long as the CEL is out I don't see them, and no codes for them.[:@]

 

Sounds like you might have a carbon problem in the EGR passages or also maybe the EGR solenid is defective...

WheelBrokerAng


[IMG]local://upfiles/22/7F0C15A77E9E42838C06D53EB2BCE526.gif[/IMG]

 

You can try cleaning out the EGR ports first, theres a DIY in the DIY section.

 

.... it ran me 300$ to have honda fix it

 

Thanks, I went to DIY on cleaning ports but couldn't open thread. I e-mailed deserthonda to see what gives. Hope I get a response or I'll have to dive in blind.(not the fist time for me)[:@]

 

This link should get you on the right track;
http://img209.imageshack.us/img209/6818/sb99085yw5.gif

 

Thanks hondadude, looks like I need to clear a day off my schedule. Or yank a light out of the dash