I recently had the catalytic converter replaced. Now my engine light is back on with my both upstream and downstream o2 sensor codes reading. I was wondering if this could be causing the loss of power or is my catalytic converter clogged again? I've put less than 3000 miles on it since it has been replaced and I don't want to replace it again.
My car has 133000 miles.
My car has an automatic transmission.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing