2002 Chevrolet Impala Q&A

2002 Chevrolet Impala Question: dtc code p0102 with check engine light comes on

the check engine light is on and the code for not passing emissons p0102 i have already replaced the air flow sensor whats wrong -
Answer 1
Did you clear the code Yet? -
Answer 2
YES AND CAME BACK ON AND RUN BAD -