how do you fix code PO 432?

Answer 1

Code PO432 typically indicates that the engine control module (ECM) has detected a problem with the catalytic converter's efficiency. To fix this issue, first, check for any exhaust leaks before the catalytic converter and inspect the oxygen sensors for proper operation. If both are functioning correctly, you may need to replace the catalytic converter. After repairs, clear the trouble codes and perform a test drive to see if the code returns.