Hi, I wonder if you still have this problem and how you solved it if at all.
I have same thing on my Honda Accord 2001, LX V6. Both lights came on simultaneously, it seems like it happens when the car has just warmed up. I was said when the engine reaches certain temperature EGR valve opens and flows some exhaust gases back to the intake. I replaced EGR valve, and the problem disappeared for a week or so, namely 350 miles, Now the lights are on again following the same pattern. Before I replaced the valve the OBD code was P0401 "insufficient EGR flow". I doubt that I have intake clogged. I live in California and run on "plus" grade gas. It should not create build-up. The mechanic who I know well and trust mentioned to me as well that it might be a transmission issue, but the car runs smooth and does not post any transmission related codes.
Have your ever visited dealer with this problem?
So, if you have any info for me I'd appreciate it very much