p4030
Re: p4030
but yeah those codes came up after clearing 4 other codes i had two were caused for an exhaust leak right next to the cat it was fixed and two other caused by a hose that also was bad i replaced it and put a new one those codes were cleared but now after a couple days these two codes showed on my obd telling me a faulty cat, do i need to replace both cats cause my obd reader says both passenger and driver side are bad


