GaryR3500
Junior Member
I have a 2022 ram 3500 6.7 diesel with 21,375 miles. Check engine light came on heading out to Maine this summer. Check code PO 402, exhaust gas recirculation flow excessive detected. EGR valve. I cleared the code. After three months out there on the way home it came one, I didn’t clear the code this time and half way back to Jersey the light went out. I have a Banks monster air box in place that’s it. I don’t know if the dealer will do any warranty work. Has anyone put any aftermarket parts on the vehicle and had dealer warranty work done.
