First step is a code scan Autozone does it free, also get the freeze frame data. This explains what the conditions where when the code set. Post all info here. Also you might want to check the catalytic converter(s). If the bed inside breaks up, pieces get lodged in the exhaust pipes and muffler, and will choke the engines breathing.
If you have a vacuum gauge, hook it up to an intake manifold port, raise the rpm to 2000, gauge should remain steady at 18hg or higher, if it starts to drop, the exhaust is plugged up.
Monday, December 14th, 2020 AT 9:14 AM