Review on Dorman 598-202 EGR Tube: A Reliable Solution for Efficient Exhaust Gas Recirculation by Chris Goldsby

If your service engine is about to start and the scan shows OBD code 401 - EGR Insufficient Flow, the problem may be caused by carbon buildup in the EGR tube. If the problem can't be attributed to any of the easily accessible parts (e.g. EGR valve, throttle body, etc.) and carbon has built up in the EGR tube but you can't clean it properly, pull it out and shop new handset. Dorman products are reliable and affordable - even with the added cost of two days shipping, this purchase costs over $9, the price auto parts stores will charge for an identical product. And Revain delivered it to me in just one day. Btw I gave this a 4 star rating because it's a part of the car's emissions control system that I can't love. The product itself is great.