I failed my smog check on my Toyota Carolla 1998 Ce.
What is your question?
when I was at the smog shop it read that I have high Nox² reading still after I replaced the catalytic converter and replaced other important components unsure what the issue is or where to start looking for the problem
RepairPal Certified shops can diagnose and repair your 1998 Toyota Celica. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.