It has a sound like catalytic converter is clogged, but it is not clogged. A rough take off and sounds like its flapping in the exhaust as I take off. Spitting and sputtering as I accelerate it gets better at three to four thousand rpm's. Now wanting to pop back . could it be the o2 sensor? It is a four wire 02 and it is after the catalytic converter, right before the muffler.
May 6, 2018 at 12:18 AM