P0430 JEEP - exhaust manifold cracked?

Question

I know my exhaust manifold is cracked could this be the cause for the code? Mil light also showing

Answer 1

Hi there,

It is possible the leaking exhaust system is causing the code for the catalytic converter. Especially if it's leaking before the front O2 sensor, it can cause the computer to run a rich fuel mixture which can result in the converter not being able to clean the exhaust.