Very frustrated!
I have a 2000 xterra. It first had a knock sensor code come up,I replaced that,it was still running rough when it warmed up so I took it to a mechanic that said both of my cadillac converters were bad. I replaced both exhaust manifolds and the Cadillac converters ($1200). All said and done it STILL runs terribly. CAN SOMEONE PLEASE HELP ME! ?
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