2001 Accord I4. I got a CEL today and pulled the code. It's P1491 - EGR Valve Insufficient Lift. Car seems to idle and run fine. I've got a 500mi road trip tomorrow. Is it safe to drive the car or would I be doing damage to the car? At my destination, I have access to a garage and tools, so I can remove the EGR valve and clean it or replace it. But if the trip is going to damage other parts, maybe I'll postpone and try to deal with this issue. What's really strange is that I had taken the car to a Honda dealer to have the seat belt buckle replaced under warranty. 10 miles after I leave the dealership, the CEL comes on. Not sure what to make of that, but I'm chalking it up to coincidence.