2006 Hyundai Tucson P0472 Error: Persistent Emission Issue After Multiple Repairs

Model: 2006 Hyundai Tucson Fault Code: P0472 Posted: 2018-05-12 04:23

I've been experiencing a persistent error code P0472 on my 2006 Hyundai Tucson with a 1.9L CRD engine for at least 12 months. Despite replacing several components related to emissions—including the EGR valve, accelerator pedal sensor, throttle body, and oxygen sensor—each repair has only temporarily cleared the error code. Recently, the vehicle flagged a particulate filter blockage issue, which was resolved after driving it for an extended period. However, shortly afterward, the P0472 code reappeared. I'm now wondering if this is a recurring problem or whether there's a deeper underlying cause. Is there any known fix for this specific error in 2006 Hyundai Tucson models? Should I simply ignore it, or are there recommended diagnostic steps to address the root issue? Any advice from owners or technicians with similar experiences would be greatly appreciated.