where to check in the exhaust for leaks related to po 2096

Question

where to check for exhaust leak on kia rio 2006 base model.

Answer 1

P2096 Post catalyst fuel trim too lean (Bank 1)

P0303 Misfire number 3 cylinder

Exhaust leaks that affects the catalyitc convertor are leaks before the catalytic , Misfire fires will also cause P2096 or a catalytic below threshold, correct for the misfire , It affects the perfomance of the catalytic convertor.